Function: When the temperature is lower than the set threshold, the corresponding indicator light lights up and the corresponding relay is activated. The relay can drive the load (fan, refrigeration plate, heating tube, etc.). When the temperature is higher than the alarm value, the sound and light alarm will sound. The keys are setting keys, plus key and minus key. The alarm value and temperature control range can be set, the temperature measurement range is 0 to 99.9 degrees Celsius, and the accuracy is 0.1 degrees Celsius.
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