53x18x18.5mm 1 Channel 12v Relay Module With Optocoupler Low Level Trigger Expansion Board
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...normally closed pin Relay can directly control all kinds of equipment and load Signal input with a low level signal, the common pin and the normally opened pin will connected Have power and relay operation instructions.The LED will be lit when relay on The...
Shenzhen Creatall Electronics Co., Ltd.
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8 Channel Arduino Relay Module DC5V / 12V / 24V With Optocoupler Isolate
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... Description * SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA * Each channel module can be set high or low triggered by jumper * Fault-tolerant design, even if the control line is broken, the relay will not...
Oky Newstar Technology Co., Ltd
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