LM393 Unique DC 5V 2-Channel Voltage Comparator Hight Precise Module
Description Function: The setting voltage reference input of a voltage and on the module (reference voltage can be set through the adjustable resistor) the contrast, when the input voltage is greater than the reference voltage, the relay is closed (11-10 closed, 11-12 disconnected), when the input voltage is less than the reference voltage, relay does not operate. To compare respectively input voltage signals A and B, when the voltage signal A is greater than the voltage signal B, the relay is closed (11-10 closed, 11-12 disconnected), when the voltage signal A is less than B voltage signal, relay. The setting voltage reference input of a voltage and on the module (reference voltage can be set through the adjustable resistor) the contrast, when the input voltage is less than the r.
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