If you've lost the signal, press and HOLD the search button until you hear a beep. Then the number of the channel being searched will start flashing. It takes about a minute or two and then will read out the temperature.
Hi, First check the both channel of clock and thermometer (you can see the controler in battery insertion of thermometer and you can set up channel by pressing ch button on the clock)
Next press F/C search button until the clock find thermometer and press F/C search button again.
I need a manual for a westclox thermo sensor 433MHz
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