Vizio Weather Radio TWRS I User Manual

User’s Guide  
Wireless Rain Sensor Series  
Rain Sensor, Model TWRS-I and  
Rain/Freeze Sensor, Model TWRFS-I  
 
The wireless sensor system is comprised of a programmable, weather-resistant receiver module  
and a sensor module with built-in transmitter. The receiver installs next to the irrigation controller  
and connects to the controller’s 24 Vac power source and sensor input terminals (if equipped)  
or splices directly into the irrigation valve common wire. The sensor module is installed within  
range of the receiver in a location that best represents the landscape’s sun/shade exposure and  
can provide reliable communication from the sensor to the receiver.  
Once activated by preset rain or low temperature levels (rain/freeze model only), the sensor  
communicates to the receiver via ultra high-frequency radio signal. The receiver responds by  
placing the controller’s automatic watering schedule on hold or by simply opening the valve  
common circuit to prevent sprinkler operation. When watering is once again needed, the sensor  
system automatically resets, allowing automatic irrigation to resume.  
More than just an accurate rain switch, the wireless sensor system actually adapts to your  
landscape with the simple, yet sophisticated Water Conservation feature. Just choose the  
conservation level that corresponds to your landscape soil type and the sensor location.  
A dry-out period, adjusted for actual rainfall duration, is automatically placed after the sensor  
system resets to effectively delay automatic watering until it is actually needed.  
TM  
Other standard features include a Smart Bypass button that gives you manual control over the  
sensor system with a single touch, system status indicators to see at glance that your sensor  
system is active and watering is on hold, watering delay to postpone automatic watering from  
1 to 5 days, air temperature displayed for rain/freeze sensors and even a Fail-safe mode to allow  
irrigation in case the sensor system is not performing properly.  
1
 
Getting Started  
The wireless rain sensor system is designed for easy installation, setup and years of trouble-free  
operation. In most cases, the system components can be installed and fully operational within  
minutes. All you will need is a Phillips screwdriver and basic do-it-yourself skills.  
If you have problems with any portion of the installation, or the product does not seem to function  
properly, refer to the Troubleshooting section on page 22 first. If the problem is not listed, or the  
remedy does not help, call Toro Irrigation at 1-951-688-9221 or contact your local Toro  
distributor for assistance. For more information on this and other Toro irrigation products, visit  
Here’s all there is to it:  
Step 1  
Step 2  
The sensor and receiver are tested at close  
The receiver is installed and connected to  
your irrigation system controller. See page 5.  
range to verify operation. See Page 8.  
2
 
Step 4  
Step 3  
The sensor is adjusted to the preferred  
rainfall activation level. See page 11.  
A sensor installation site is chosen and the system  
is tested again to verify operation. See page 10.  
Step 6  
Step 5  
The operating features are set to your  
The sensor module is installed. See page 11.  
preferences. See page 14.  
3
 
Receiver Module Features  
1–  
Setup Button–Accesses the receiver setup and operating  
features.  
Adjust Button–Selects settings within the receiver setup  
and operating features.  
3
4
2–  
5
6
7
3Mast Antenna–Adjusts easily for best signal reception.  
4Digital Display–High-resolution LCD screen provides visual  
2
1
reference for sensor system operating features.  
5Sensor Status Indicators– Rain status and Freeze status  
(TWRFS-I only) indicators illuminate when the sensor  
system is active and automatic watering is on hold.  
TM  
8
6–  
Smart Bypass Button–Multi-functional use. Pressed  
to bypass sensor operation, allowing automatic watering to  
resume. Switches the Water Delay feature on and off.  
7–  
Water Conservation LEDs–Indicate the Water  
Conservation feature level selected (Minimum, Medium or Maximum).  
8Hinged Cover–Opens downward for receiver control access.  
Closed position protects receiver when installed outdoors.  
4
 
Installing the Receiver Module  
Important: Installation of this product must comply with national and local building and  
electrical codes. For assistance, contact a professional irrigation system contractor in your area.  
The receiver module is suitable for either indoor or outdoor installation. Select a location next to  
the controller that provides the following conditions:  
• The display screen is clearly visible and the control buttons are easily accessed.  
• The connection cable can reach the controller wiring terminal strip without straining.  
• The antenna will be unobstructed and is able to be adjusted.  
Figure 1  
1. Install one of the provided stainless steel screws into the wall at the  
intended receiver location. Leave a 3mm gap behind the screw head.  
Note: Use screw anchors if installing the receiver on drywall or masonry.  
2. Hang the receiver on the screw ensuring the keyhole slot drops down  
onto the screw shaft.  
3. Install a second screw through the lower tab to secure the receiver.  
4. Route the connection cable through the bottom of the controller cabinet  
to the wiring connection terminals.  
Important: If the receiver module is installed outdoors, be sure to keep the cover in the  
closed position when you do not need to view the display or access the control buttons.  
5
 
Connecting the Receiver Wires  
CAUTION: The receiver requires continuous 24 Vac power for operation. Connecting to  
higher power will result in irreparable damage. Ensure that power to the controller has  
been removed prior to connecting the receiver wires.  
The sensor system is designed to work with most makes and models of irrigation controllers.  
• If your controller is equipped for a sensor connection, follow the steps in Wiring Procedure I.  
• If your controller is not equipped for a sensor connection, use Wiring Procedure II on page 7.  
Wiring Procedure I (sensor-ready)  
Figure 2 - Normally-closed Sensor  
Note: Refer to your controller user’s guide  
to determine the type of sensor required:  
Normally Closed (NC) or Normally Open (NO).  
Jumper  
TWRFS-I  
PUMP/  
MV  
1. Locate the sensor connection terminals,  
SENSOR  
COM  
24 VAC  
1
2
3
4
usually labeled “SENSOR” or “SN.”  
Remove the jumper connector (if installed).  
2. Attach the White wire to either Sensor  
Red  
terminal (disregard +/ – polarity if labeled).  
Red  
To Valves  
3. For a Normally-Closed sensor type , attach the  
Brown wire to the remaining Sensor terminal.  
Tape back the Yellow wire. See Figure 2.  
White  
Brown  
Yellow  
X
6
 
For a Normally-Open sensor type, attach the  
Yellow wire to the remaining Sensor terminal.  
Tape back the Brown wire. See Figure 3.  
Figure 3 - Normally-open Sensor  
4. Attach the two Red wires to the 24 Vac  
terminals in either order.  
Important: Most controllers equipped  
for sensor connection provide a switch to  
control the sensor circuit. Check the  
switch setting to ensure that it is not in  
the Bypass or Off position.  
Red  
Red  
To Valves  
White  
Yellow  
Brown  
TWRFS-I  
Figure 4 - Splice Valve Common  
Wiring Procedure II (no Sensor terminals)  
1. Locate the valve common wire terminal,  
generally labeled “C” or “COM”, and remove  
the attached common wire(s).  
2. Attach the White wire to this terminal.  
Red  
To Valves  
3. Splice the Brown wire to the common  
wire(s) using a wire nut or electrical tape.  
Tape back the Yellow wire. See Figure 4.  
Red  
White  
Brown  
Yellow  
Common to Valves  
and Pump/MV  
4. Attach the Red wires to the 24 Vac terminals.  
7
 
Initial Sensor System Test  
Before installing the sensor module, test the sensor system to verify operation. Once this test has  
been completed satisfactorily, the sensor module can be installed. If a problem occurs during the  
test procedure, refer to “Troubleshooting” on page 22.  
1. Apply power to the controller. Check controller operation to confirm that it is working properly.  
2. When power is applied to the receiver,  
Figure 5  
Figure 6  
the “Min”  
Water Conservation indicator will  
illuminate. The TWRS-I receiver will display  
alternating boxes and the TWRFS-I receiver will  
display two flashing bars as shown in Figures 5 and 6.  
3. Holding the sensor module next to the receiver, press  
and hold the sensor test spindle down for at least 15  
seconds to establish communication. See Figure 7.  
The Sensor Status indicator will illuminate,  
Figure 8  
Figure 7  
the Antenna icon will flash and the signal strength  
bars will appear. The TWRFS-I receiver will display  
the current air temperature. See Figure 8.  
Figure 9 (TWRS-I)  
Figure 10 (TWRFS-I)  
4. When the Antenna icon stops flashing, release the  
test spindle. The receiver display will appear as  
shown in Figures 9 or 10.  
8
 
Sensor Module Features  
1Rain Threshold Adjustment–Adjusts the rain sensor to  
accumulate 3mm, 6mm,12mm or 19mm of rainfall before  
signaling the receiver to hold watering. The factory default  
setting 6mm.  
2
1
2Sensor Test Spindle–Pressed to manually activate the  
sensor for setup and test procedures.  
3Batteries (not shown)–Two 3V lithium batteries, installed  
at time of manufacture, will provide approximately five  
years of service under normal use conditions.  
6
4Antenna–Positioned downward for maximum signal  
transmission strength.  
5Pipe-mount Adapter–Replaces Quick Clip mounting  
bracket to enable installation on a length of 13mm thick-  
wall PVC pipe.  
3
4
TM  
6Quick Clip Mounting Bracket–Simplifies sensor  
module installation. Adjustable pivot point for easy  
vertical alignment.  
5
9
 
Rain Sensor Site Selection  
Choosing the right installation site for the sensor module is key to obtaining the maximum benefit  
from your sensor system. For best results, choose a sensor installation site that provides:  
• Unobstructed exposure to rainfall–away from overhangs, tree branches, etc.  
• Protected from irrigation spray, rainwater accumulation and the possibility of submersion.  
• Exposure to sunlight and shade conditions similar to the landscape being watered.  
• Good communication signal from the sensor to the receiver.  
Note: If installing a TWRFS-I rain/freeze sensor specifically for freeze detection, refer to the  
additional site selection criteria provided on page 13.  
Before installing the sensor module, test the system again to confirm operation by using the  
following test procedure:  
1. Activate a watering zone that is visible from the intended sensor installation site.  
Note: The manual operation mode of some irrigation controllers may bypass the sensor circuit.  
If your controller operates like this, set an automatic cycle to start within a minute or two.  
2. With the sprinklers on, press and hold the sensor test spindle until the sprinklers shut off.  
Note: Irrigation control valves close at various rates. It may require several seconds for the  
sprinklers to shut off.  
If the test is successful, the sensor is ready to install. If the sprinklers do not shut off, try moving  
the sensor a few feet in either direction and test again. Rotating the receiver antenna slightly may  
improve the signal strength. Refer to “Troubleshooting” on page 22 for additional information.  
10  
 
Installing the Sensor Module  
1. Adjust the sensor module to the preferred rainfall threshold activation point.  
The settings, provided in metric on one side of the cap and U.S. standard on  
the other, include 3mm, 6mm, 12mm and 19mm. The factory setting is 6mm  
and is generally a good starting point. The 3mm setting is not recommended  
for high humidity or foggy locations. To adjust, turn the cap to align the  
stationary pin with the vertical slot. Guide the cap to the preferred slot  
position, then turn it just enough to engage the pin.  
Figure 11  
2. To install the sensor module on a rain  
Figure 13  
Figure 12  
gutter, position the Quick Clip bracket  
on the outer edge of the gutter and  
secure by tightening the thumb screw  
(Figure 12). Use the provided stainless  
steel screws when installing the sensor  
on a solid structure, such as a fence or  
the side of a roof. See Figure 13.  
Thumb  
Screw  
Note: For optimum signal strength,  
the antenna wire should hang straight  
down. Ensure the antenna is not in  
contact with any metal objects .  
11  
 
3. To install the sensor on a length of thick-walled PVC pipe, remove and replace the Quick Clip  
bracket with the pipe-mount adapter. To provide friction between the components, ensure the  
star washer is installed between the adapter and housing tab as shown in Figure 14.  
4. Check the sensor module for vertical alignment. To adjust, loosen the bracket screw slightly,  
align vertically and tighten screw. See Figure 15.  
Figure 14  
Figure 15  
Star  
Washer  
12  
 
Freeze Sensor (model TWRFS-I) Site Selection  
To ensure optimum freeze sensor operation, the sensor module installation site should meet the  
site criteria of the rain sensor in addition to the following conditions:  
• Located in the coldest portion of the landscape.  
Away from direct exposure to morning sunlight.  
Away from any heat producing or storing device, equipment or appliance such as a pool/spa,  
heater, water heater, chimney or hot air vent pipe.  
CAUTION: The freeze sensor should be regularly inspected for freeze damage and  
manually tested to ensure proper operation.  
The freeze sensor system is NOT intended for farm/crop freeze protection and must not be  
used for this purpose.  
Important: Visual checks and prudent manual watering suspension must be used in  
conjunction with any freeze sensor. A freeze sensor should only be relied upon as an aid to  
conscientious watering practices, including frequent visual checks.  
Air temperatures may be above freezing while the ground and vegetation temperatures remain  
below freezing. Due to sensor location and sunlight exposure, actual air temperature may be  
lower than measured by the sensor. Operation of the sprinkler system during these conditions may  
cause icing. Freeze sensor response time may not coincide with extremely rapid temperature  
drop, enabling automatic irrigation to occur.  
13  
 
Set Temperature Activation Threshold (TWRFS-I models only)  
The freeze sensor temperature activation threshold is adjustable from 2°C to 7°C ( 35°F to 45°F).  
When the air temperature reaches the threshold setting, the freeze sensor activates the receiver,  
and the Freeze Status indicator will turn on. The sensor system will return to the Monitor mode  
when the outside air temperature rises above the sensor threshold temperature.  
Select Centigrade or Fahrenheit Temperature Scale  
Figure 16  
1. Press the  
Setup button to display the current temperature scale  
Setup icon will begin flashing to indicate the  
(°C or °F) and the  
selected feature can be adjusted. See Figure 16.  
2. To select the alternate temperature scale, press the  
Select Temperature Threshold  
Advance button.  
Figure 17  
1. Press the  
Setup button to display Temperature icon. The display  
will indicate the current temperature threshold setting and the  
Setup  
icon will begin flashing to indicate the selected feature can be adjusted.  
See Figure 17.  
2. Press the  
Advance button to set the sensor threshold temperature.  
Congratulations! Your Wireless Rain Sensor system installation is complete. To take advantage  
of the unique Water Conservation feature, review the information on the next page to select the  
conservation level that best suits your landscape irrigation needs.  
14  
 
Water Conservation Feature – By simply choosing the Minimum (Min), Medium (Med) or  
Maximum (Max) conservation level that corresponds to your landscape’s soil type and the sensor  
location, a dry-out period, adjusted for actual rainfall duration, is  
Figure 18  
inserted after the sensor system resets to delay the resumption of  
automatic watering.  
Each conservation level represents a baseline value that is  
automatically adjusted to compensate for rainfall duration.  
Min (display number 1) – sets baseline at no days of delay.  
Med (display number 2) – sets baseline at one day of delay.  
Max (display number 3) – sets baseline at two days of delay.  
To assist in choosing which conservation setting to use, review  
the chart in Figure 18. First select the landscape soil type. Now,  
drop down to the row that best describes the sun/shade coverage  
Figure 19  
of the sensor location. The level indicated where the two conditions meet is  
the suggested starting point. That’s all there is to it!  
1. Press the  
Setup button to display the  
Water Conservation icon.  
The display will indicate the current water conservation level setting  
and the corresponding level indicator will be illuminated. The  
icon will begin flashing to indicate the selected feature can be adjusted.  
See Figure 19.  
Setup  
2. Press the  
Adjust button to select level 1, 2 or 3.  
15  
 
Smart Bypass Feature  
Figure 20  
Once the rain sensor becomes active, it can be easily bypassed by pressing  
the  
Smart Bypass button. When the rain sensor is bypassed,  
the Sensor Status indicator and  
flashing. See Figure 20.  
Smart Bypass icon will begin  
The controller will resume automatic watering operations as scheduled. The rain sensor will stay  
in the Bypass mode until it automatically resets to the Monitor mode, or is returned to the active  
mode by pressing the  
Smart Bypass button again.  
Water Delay Feature  
The Water Delay feature provides a convenient method of postponing automatic irrigation from  
1 to 5 days when rain (or freeze) conditions are expected.  
1. Press the  
The Setup icon will begin flashing to indicate the selected feature can  
be adjusted. See Figure 21.  
Setup button to display the  
Water Delay icon.  
Figure 21  
2. Press the  
Adjust button to select 1.0 to 5.0 days.  
• To activate the Water Delay period, press the  
Smart Bypass button.  
The number of days remaining in the Water Delay period will countdown as days pass.  
Automatic watering will resume as scheduled when 0.0 Water Delay days remain.  
• To cancel the Water Delay mode and resume automatic watering operations as scheduled,  
press the  
16  
Smart Bypass button again.  
 
Signal Strength Display  
This feature displays sensor signal strength on a digital scale ranging from 0.0 to 10.2.  
1. Press the  
Setup button as needed to display the antenna icon and the  
Figure 22  
digital readout. The display will indicate the strength of the last received  
signal. See Figure 22.  
Important: A signal strength value less than 2.0 is may cause  
inconsistent operation. Relocate the sensor as needed to increase the  
signal strength. See “Troubleshooting” on page 22 for additional information.  
Battery Strength Display  
This feature displays sensor battery strength on a bar scale. The strength of the battery is indicated  
by the height of the bar stack: No bar = a dead battery to six bars = full strength.  
1. Press the  
the bar scale. See Figure 23.  
Note: If the Battery icon is flashing, low battery strength is indicated  
Setup button as needed to display the  
Battery icon and  
Figure 23  
and replacement is recommended.  
See “Sensor Module Battery Replacement” on page 21.  
17  
 
Dry Out Feature  
The Dry Out feature is provided to override the Water Conservation baseline level, allowing the  
dry-out delay period to be set with more accuracy from 0.5 to 4.0 days in 0.5-day increments.  
Note: Before using the Dry Out feature, allow the sensor system to normalize by cycling through  
rain and/or freeze activation several times.  
1. Press the  
The display will indicate the current Dry Out day setting (factory default is  
0.0 days). The Setup icon will begin flashing to indicate the selected  
feature can be adjusted. See Figure 24.  
Setup button to display the  
Dry Out icons.  
Figure 24  
2. Press the  
Adjust button to select the desired value (0.5 to 4.0 days).  
Note: Once activated, the Dry Out mode can be canceled by pressing the  
Smart Bypass  
button.  
Note: Changing the Water Conservation level will override the Dry Out feature setting.  
Fail Safe Feature  
The Fail Safe feature is provided to alert and respond to a loss of communication signal and/or if  
the sensor system stays in the active mode for a prolonged period of time. This important feature  
safeguards your automatic irrigation system from being inadvertently shut off for an indefinite  
period of time due to a rain sensor system malfunction.  
18  
 
Loss of Communication  
If the sensor and receiver do not communicate within a 24-hour period, the  
sensor system will remain in its current state (Active or Monitor). To alert  
Figure 25  
you to this condition, the  
Warning icon will be displayed. The Antenna  
icon and current air temperature (TWRFS-I only) will be flashing and the  
signal bar indicator will be cleared. See Figure 25.  
Figure 26  
If communication is not restored within 48 hours, the sensor system will  
automatically revert to the Monitor mode; allowing automatic irrigation to  
resume as scheduled. The Warning and Antenna icons will continue to  
flash. On the TWRFS-I model, the temperature is replaced with two dashes.  
The  
Water Conservation indicators will flash in unison. See Figure 26.  
Prolonged Active Mode  
If the sensor system remains in the Active mode for seven consecutive days,  
it will revert to the Monitor mode, allowing the irrigation system to resume  
automatic operation.  
Figure 27  
The Sensor Status indicator will flash continuously and the Warning  
icon will be displayed to alert you to this condition. See Figure 27.  
Note: A prolonged Active mode generally indicates a stuck sensor.  
Check the sensor test spindle to confirm that it moves freely when the sensor discs are dry.  
• To reset the receiver, press the Smart Bypass button one time.  
19  
 
Turn the Receiver Module Off and On  
1. To turn the receiver module Off, press and hold the  
Adjust button until two dashes are  
displayed (approximately 5 seconds), then release.  
2. To turn the receiver On, press the  
Setup button two times. The receiver will return to the  
normal display mode within approximately 10 seconds.  
Set or Restore the Sensor Address Code  
The receiver and sensor modules are factory-matched to communicate using a specific address  
code. If you have purchased a new sensor module or if it becomes necessary to reset the address  
code, use the following procedure to enable communication:  
1. Press and hold the  
Smart Bypass button until all three  
Figure 28  
Water Conservation indicators are illuminated and the  
Setup  
icon begins blinking (approximately 15 seconds). See Figure 28.  
2. Activate the sensor module at close range by pressing the test  
spindle until the Sensor Status indicator is illuminated, then release  
the test spindle. Refer to step 3 of “Initial System Test” on page 8  
for additional information.  
Note: If the Water Conservation level is set to Medium or Maximum, or the Dry Out feature is in  
use, the sensor system will be activated. Press the  
receiver to the Monitor mode.  
Smart Bypass button to reset the  
20  
 
Sensor Module Battery Replacement  
Figure 29  
1. Unscrew and remove the bottom cap from the sensor  
housing.  
2. Grasping the edges of the circuit board assembly, carefully  
slide the circuit board assembly out of the housing.  
3. Remove the battery cover and batteries.  
4. Insert two new 3V CR2032 (or equivalent) batteries with  
the positive (+) side facing toward the retaining clip.  
Note: Properly dispose of the used batteries according  
to the battery manufacturer’s recommendations.  
5. Install the battery cover.  
6. Align the circuit board assembly with the housing guide  
slots and carefully insert it into the housing. The circuit  
board will fit only when oriented properly. The bottom  
edge of the circuit board and housing will be even when  
fully inserted.  
Battery  
Cover  
7. Thread the antenna wire through the hole in bottom cap.  
Screw the cap onto the housing and tighten by hand.  
21  
 
Troubleshooting  
If you encounter problems at any point in the installation process, or the components do not  
function properly, try the Troubleshooting procedures first. If the problem is not listed or the  
remedy does not resolve the problem, contact your local Toro irrigation distributor for assistance.  
Signal strength is weak or inconsistent.  
The Wireless Rain Sensor system has a maximum operating range of 152.4m (500') LOS  
(Line-of-Site). Operating range is based on optimum site conditions with no signal interference  
present. But in most cases there are buildings in the way or other sources of radio signal  
interference, that can reduce the signal range. Most residential and small commercial buildings  
will not pose reception problems under normal conditions. However, there are some sites with  
buildings or structures constructed of thick, dense walls, or contain electrical equipment that  
emits high levels of radio frequency interference. If you are having difficulty obtaining good  
signal strength, try the following possible solutions:  
• Move the antenna away from any large metal object.  
• Avoid indoor receiver locations where cellular or cordless phones have trouble with reception.  
• Mount the sensor and receiver modules closer together if possible.  
• If the sensor is installed directly over the receiver, move the sensor slightly to either side of  
the receiver.  
22  
 
The receiver display is blank.  
• Check the 24 Vac power connections. The red power wires from the receiver must be  
connected to the controller’s 24 Vac power source. Make sure the power wires are not  
connected to the station or pump/master valve terminals. These terminals only provide 24  
Vac power when the controller is operating the sprinkler zones.  
The sensor module does not activate the receiver at close range.  
• The receiver module may not recognize the sensor module address code.  
See “Set or Restore Sensor Address Code” on page 20.  
• Remove and replace the sensor module batteries.  
The sensor system works, but the controller does not respond to the sensor.  
• Check the Yellow or Brown wire connection. The Brown wire must be used for Normally  
Closed (NC) controller operation and Yellow wire for Normally Open (NO) operation.  
• The Brown wire must be used when splicing into the valve common wire.  
• Make sure the controller’s Sensor control switch is not in the Bypass or Off position.  
23  
 
Specifications  
Models:TWRS-I (Wireless Rain Sensor-International) and TWRFS-I (Wireless Rain/Freeze  
Sensor-International)  
Wireless Communication Range: Up to 152.4m LOS (line-of-site)  
Sensor Type: Industry-standard hygroscopic disc stack with adjustable rainfall sensitivity  
Sensor Module Batteries: (2) 3V cells - CR2032 (or equivalent)  
Average Battery Life: 5 years  
Operating Temperature Range: -29°C to 49°C  
Receiver Power: 22–28 Vac/Vdc, 100mA (from controller w/Class 2, UL-approved transformer)  
Relay Contacts Output: Normally Open (NO) and Normally Closed (NC) 3A at 24 Vac  
Note: The Toro Wireless Rain and Rain/Freeze Sensor series, models TWRS, TWRS-I, TWRFS  
and TWRFS-I, are patented with the following U.S. patents pending: 6,452,499, 5,101,083 and  
D489,280.  
24  
 
The Toro Promise – Five-year Limited Warranty  
The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrants, to  
the owner, each new piece of equipment (featured in the current catalog at date of installation) against defects in material and  
workmanship for for a period described below, provided they are used for irrigation purposes under manufacturer's  
recommended specifications. Product failures due to acts of God (i.e., lightning, flooding, etc.) are not covered by this warranty.  
Neither Toro nor Toro Warranty Company is liable for failure of products not manufactured by them even though such  
products may be sold or used in conjunction with Toro products.  
During such warranty period, we will repair or replace, at our option, any part found to be defective. Your remedy is limited  
solely to the replacement or repair of defective parts.  
Return the defective part to your local Toro distributor, who may be listed in your telephone directory Yellow Pages under  
"Irrigation Supplies" or "Sprinkler Systems," or contact The Toro Warranty Company P.O. Box 489, Riverside, California,  
92502. For the location of your nearest Toro distributor outside the U.S., call (951) 688-9221.  
This warranty does not apply where equipment is used, or installation is performed in any manner contrary to Toro’s  
specifications and instructions, nor where equipment is altered or modified.  
Neither Toro nor Toro Warranty Company is liable for indirect, incidental or consequential damages in connection with the  
use of equipment, including but not limited to: vegetation loss, the cost of substitute equipment or services required during  
periods of malfunction or resulting non-use, property damage or personal injury resulting from installer’s actions, whether  
negligent or otherwise.  
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or  
exclusion may not apply to you.  
All implied warranties, including those of merchantability and fitness for use, are limited to the duration of this express  
warranty.  
Some states do not allow limitations of how long an implied warranty lasts, so the above limitation may not apply to you.  
This warranty gives you specific legal rights and you may have other rights which vary from state to state.  
The Toro Wireless Rain Sensor series is covered by this warranty for a period of five years from the date of installation.  
25  
 
Electromagnetic Compatibility  
The TWRS-I and TWRFS-I wireless rain sensor series is CISPR 22 class B compliant.  
FCC ID: OF7TWRS  
IC: 3575A-TWRS  
Important: Changes or modifications to this unit, not expressly approved by the party  
responsible for compliance, could void the authority to operate the equipment.  
Form # 373-0372 Rev. A  
 

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