1, this module is in line with international safety standard, control areas and load area have the isolation groove; the double FR - 4 circuit board design, high-end SMT process;
2, Uses the loose music authentic relay control; have power and relay operation instructions, and bright, disconnect the dawn;
3, signal input with low level signal, the common and often start conduction; relay can directly control all kinds of equipment and load;
4, one often opened a normally closed contact; blue KF301 terminal line more convenient.
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