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Indoor distance test:

 Please complete the 

Restart 

with outdoor sensor and projection alarm 5-10 feet 

apart and inside to establish a strong connection.  

  After 15 minutes, if there is a reading in the outdoor temperature area, move the outdoor sensor to 

another room with one wall between the outdoor sensor and the projection alarm.  

  Observe to see if the temperature remains on consistently for 1 hour.  

  If the temperature remains on while in the house, then it is likely a 

distance/resistance 

issue.  

  Move the outdoor sensor to different locations outside to find a location where the temperature 

reading will hold. 
 

Outdoor Temperature is stuck or HH.H, LL.L 

 

Explanation: 

These symbols are error messages indication the outdoor sensor is outside of its readable 

range.  
 

  Check 

Batteries.

 Overpowered or underpowered batteries can cause this reading. 

  Replace outdoor sensor.

 

 

Note: 

The last outdoor reading may remain (not change) for several hours when connection is lost. The 

outdoor temperature reading will flash when the connection is first lost or intermittent.  
 

Outdoor sensor drains batteries quickly 

 

  Test a new set of alkaline batteries. Write down the date of installation and the voltage of the 

batteries. 

  When the batteries fail, please note the date and voltage again.  

  Check the 

distance 

and 

resistance

 between the outdoor sensor and projection alarm. Outdoor 

sensors at the end of the range may work while batteries are fresh but not after they drain a bit. 

  Check for leaking batteries, which may damage the outdoor sensor. 

  Battery life is over 24 months when using reputable battery brands for both Alkaline and Lithium 

batteries. 

 

Outdoor sensor fell. The sensor no longer works 

 

Explanation:

 If there is no physical damage to the outdoor sensor, the fall may not have caused internal 

damage. A fall can shock the outdoor sensor or the batteries in the outdoor sensor. Batteries that have 
fallen on a hard surface may be damaged and unable to function properly. 
 

  Complete a 

Restart

 with fresh batteries. 

  Us

Batteries 

dated at least six years in advance of the current year. Batteries dated earlier than six 

years from now may still work, but may be unstable in performance. 

 

Note: 

An outdoor sensor that has fallen into puddle, snow, or other standing water, will likely have water 

damage and needs to be replaced. Outdoor sensors are water resistant, not waterproof. 
 

Replacement Outdoor Sensors 

 

  Visit your local Retailer or La Crosse Technology® Stor

http://store.lacrossetechnology.com/

  

Note

: Be sure to order the correct model and frequency to avoid receiving the incorrect item.  

  Call La Crosse Technology® Store at 

608-785-7939 

or e-mail from our website if you are unsure 

about the correct item to order. Each item carries the original new product warranty and includes 
access to La Crosse Technology technical support. 
 

Mounting/Positioning Outdoor sensor 

 

First:

 Place the outdoor sensor in the desired shaded location and the projection alarm in the home. Wait 

approximately 1 hour before permanently mounting the outdoor sensor to ensure that there is proper 
reception.  
 
POSITION 

  Mount outdoor temperature outdoor sensors 

vertically

.  

Summary of Contents for K85236

Page 1: ...ntermittent Outdoor Temperature 3 Outdoor Temperature is stuck or HH H LL L 4 Outdoor sensor drains batteries quickly 4 Outdoor sensor fell The sensor no longer works 4 Mounting Positioning Outdoor se...

Page 2: ...temperature will appear on the station Allow the outdoor sensor and projection alarm to sit together for 15 minutes to establish a strong connection 10 Do not press buttons for 15 minutes For optimum...

Page 3: ...on alarm 90 degrees towards the outdoor sensor to provide better reception This allows more antenna surface to face the outdoor sensor signal Try the quick connect or factory restart Inaccurate Outdoo...

Page 4: ...t not after they drain a bit Check for leaking batteries which may damage the outdoor sensor Battery life is over 24 months when using reputable battery brands for both Alkaline and Lithium batteries...

Page 5: ...r sensor The maximum transmitting range in open air is 200 feet 60 meters Obstacles such as walls windows stucco concrete and large metal objects can reduce the range Choose a location 6 feet or more...

Page 6: ...ries may be overpowered or underpowered Remove batteries from the projection alarm Press any button 20 times Leave the projection alarm unpowered for 1 2 hours Install fresh Alkaline batteries with co...

Page 7: ...he next item 4 12 24 HOUR TIME 12H will flash Press and release the TEMP or TIME button to select 24H Confirm with the SET F C button and move to the next item 5 HOUR The hour will flash Press and rel...

Page 8: ...RTANT When operating on A C power the backlight projection and USB charging port will turn off while the Projection Alarm searches for the WWVB signal to avoid interference The backlight and projectio...

Page 9: ...Projection Alarm for better reception Hold the TIME button to send the Atomic Projection Alarm on a signal search at night Allow up to 5 nights to receive the time signal Projection alarm is dim Expla...

Page 10: ...teries fail please note the date and voltage again This is helpful in determining the problem Check for leaking batteries which may damage the projection alarm Battery life is over 12 months when usin...

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