DC 12/24V LM393 Comparator 2/4 Channel Voltage Comparion Module Relay Switch
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Product Introduction

Description:
The module name: 2/4 Channel comparison module
Features: through the comparison of the two voltage to the control circuit on or off by

Function description:
1. Function: the setting voltage reference input of a voltage and on the module (reference voltage can be set through the adjustable resistor) comparison, when the input voltage is greater than the reference voltage, the relay is closed (10-9 closed, 10-11 disconnected), when the input voltage is less than the reference voltage, the relay does not operate.
2. Function two: two 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 (10-9 closed, 10-11 disconnected), when the voltage signal A is less than B voltage signal, the relay does not work.

Three features: the setting voltage reference input of a voltage and on the module (reference voltage can be set through the adjustable resistor) comparison, when the input voltage is less than the reference voltage, the relay is closed (10-9 ratio, 11-10 disconnected), when the input voltage is greater than the reference voltage, the relay does not operate.

The reference voltage: This version upgrades for the enhanced version 4 voltage comparator module,
add the reference voltage stabilizing circuit, a reference voltage is not receiving module power supply
voltage change, adjustable reference voltage range can reach 0-31V.
Module purpose: the automobile circuit hardware, industrial equipment, laboratory testing, application