3M Precision Digital Atomic Wall / Desk Clock with Indoor & Outdoor Temperature and Alarm will not display outdoor temp, i have replaced batteries, outdoor sensor is transmitting, does not appear to "sync" with receiver

Search the manufacturers website and ebay. It may require a little time and effort.

[PDF]WS-8117 ATOMIC CLOCK WITH OUTDOOR WIRELESS ...

https://www.lacrossetechnology.com/products/.../misc/8117-manual.pdf

NOTE: Do not set the clock until the outdoor temperature is displayed. .... The unit will still try and receive the signal every day despite it being manually set. ..... sunlight, extreme cold and wet/moist conditions as these will lead to rapid changes ... Beforesending the atomic clock in for repairs, contact La Crosse Technology.

La Crosse Technology Top Solutions

https://www.lacrossetechnology.com/support/top_solutions.php

A: Complete a restart for display with the temperature/humidity sensor: ... to rest for 15 minutes can result in failure to connect with the outdoor sensor or missing ... Products set outside of these time zones will not search for a WWVB signal as it is ... locate the Clock or Weather Display near an outside wall and point the unit in ...

Common issues weather stations: Click Here

www.weather-station-products.co.uk/faqs/common-issues-weather-stations

Under £30 £30-£75 £75-£125 From £125 Birdhouses/Feeders Outdoor Clocks ... I'mnot getting any outdoor readings from my outdoor sensor, what do I do? This willcure 90% of all sensor connection problems, important you must ... is the airtemperature, to get this reading you need to place the unit away from direct sun.

Replacement Temperature Sensor ' AcuRite

www.acurite.com > All products

Look carefully at the back of your clock for a reset button. The temp may have encountered a problem and stopped working. Also, be sure the battery is fresh. Hope this helps.

I have experienced the same with numerous different, "quote un quote" atomic clocks! Please don't forget that this sender unit, that goes outside, generates a RF Singal to be received by the clock inside. This unit transmits a signal 433 MHz signal approximately every. 3 minutes, and after so many years the sender unit's RF section(electronics) just goes out or no longer function properly or not at all! The transmitter/sender for this model number, according to "3M" is obsolete and can no longer be furnished, DRATTS !!!!!

Double check the batteries to make sure they are installed correctly. If one of the batteries in the outdoor sending unit is in backwards, it will not send the outdoor data. On the indoor unit, there is typically one battery that is used for receiving the signal from the outdoor unit. If all of the batteries are in correctly but that one, you will see the display and the indoor temperature information, but the outdoor information will not be displayed.

Seems to be a consistent problem with Skyscan. I have the 88800 model and my outdoor transmitter isn't transmitting the temperature either. We've replaced the batteries in both the transmitter and clock and nothing for outdoor temp. It's only been used for 9 months.

These devices have a limited range, normally 20-30' (~6-9m) and that range is influenced by the material that separates them. Any metal structures in their path can shorten the useful range. Also, I think all of these transmit only a second or two every few minutes to conserve battery power.   

HOLD SET BUTTON UNTIL ITEM YOU WANT TO CHANGE FLASHES. USE + AND - BUTTONS TO CHANGE ITEM . PUSH SET TILL IT RUNS ON.

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