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La Crosse Technology, Ltd.  

Page 8 

 

 

Consider items in the signal path between the transmitter and the Wireless 
Thermometer.  

 

Sometime a simple relocation of the transmitter or the Wireless Thermometer will 
correct the interference issue. 

 

Windows can reflect the radio signal.  

 

Metal will absorb the RF (radio frequency) signal. 

 

Stucco is backed by a metal mesh that holds it to the wall. 

 

Transmitting antennas (ham radio, emergency dispatch center, airports, military bases, 
etc.) 

 

Electrical wires (utilities, cable, etc.) 

 

Vegetation is full of moisture and reduces signal. 

 

Dirt: Trying to receive a signal through a hill is difficult. 

 

Wireless Thermometer 

 

How tall are the time numbers? 

 
The time numbers are 0.5 inches tall. 
 

Power requirements 

 

 

2-AA alkaline batteries power the Wireless Thermometer. 

 

12-Hour or 24-Hour time format 

 

 

Display the time in 12-hour or 24-hour format.  

 

Default is 12-hour time. 

 

Use th

Program Menu

 to switch time formats. 

 

Dashes, HH.H, LL.L or stuck Indoor Temperature 

 

 

This is generally a power related issue.  

 

Batteries

 may be overpowered or underpowered. Remove batteries from Wireless 

Thermometer.  

 

Press any button 20 times. Leave the Wireless Thermometer unpowered for 1-2 hours.  

 

Install fresh alkaline batteries with correct polarity.  

 

If the indoor temperature is still dashes or OFL, the Wireless Thermometer may need 
replacement. 

 

Inaccurate Indoor Temperature reading 

 

 

Side-by-side test: Bring the outdoor transmitter in the house and place it next to the 
Wireless Thermometer for 2 hours.  

 

Compare indoor and outdoor temperature. The temperature should be within 4 
degrees to be within tolerance.  

Summary of Contents for CA85152

Page 1: ...utdoor Temperature reading 4 Intermittent Outdoor Temperature 4 Outdoor Temperature is stuck or HHH LLL 4 Outdoor transmitter fell and no longer works 5 Outdoor Transmitter drains batteries quickly 5...

Page 2: ...s may cause loss of indoor readings missing segments dim display etc Wireless Thermometer Factory Restart FACTORY RESTART DISTANCE Bring the transmitter and Wireless Thermometer together inside and pl...

Page 3: ...fails once the antenna will lose one bar If synchronization fails twice the antenna will lose two bars If RF radio frequency reception fails five times the antenna symbol will show without bars The an...

Page 4: ...tdoor transmitter to a closer location Freezer test Confirm the Wireless Thermometer is reading the correct outdoor transmitter Place the transmitter in the freezer for an hour and watch the temperatu...

Page 5: ...age again Check the distance and resistance between the transmitter and Wireless Thermometer Transmitters at the end of the range may work while batteries are fresh but not after they drain a bit Chec...

Page 6: ...strong RF radio frequency signal Outdoor transmitters are water resistant but not water proof Avoid more than one wall between the transmitter and the Wireless Thermometer Do not mount near electrical...

Page 7: ...meters Obstacles such as walls windows stucco concrete and large metal objects can reduce the range Distance Resistance Interference Distance The maximum transmitting range in open air is over 200 fe...

Page 8: ...tall Power requirements 2 AA alkaline batteries power the Wireless Thermometer 12 Hour or 24 Hour time format Display the time in 12 hour or 24 hour format Default is 12 hour time Use the Program Men...

Page 9: ...e to move to the minutes MINUTES The Minutes will flash Press and release the MIN MAX button until the correct minutes are displayed Press and release the SET button once more to exit the program menu...

Page 10: ...n 20 times Leave the batteries out of the display for 2 hours Insert fresh batteries into the Wireless Thermometer Wireless Thermometer display is frozen On a brand new Wireless Thermometer check for...

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