1, this module is in line with international safety standard, control areas and load area have the isolation groove;
2, USES the loose quality goods relay;
3, have power and relay operation instructions, and bright, disconnect the dawn;
4, signal input signal, the public end and will often start conduction;
5, can be used as a microcontroller development board module, can be used as a home appliance control;
6, dc or ac signal control, can control 220 v ac load;
7 and one often opened a normally closed contact;
8, blue KF301 terminal line more convenient.