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which is needed to preheat the sensor to get it in the working window
Agricultural
Base trigger voltage: 5V
and is resistant to abrasion
Self-programming features are also included
PCB for 2-Channel Relay Module with Optocoupler Input Electrical Tape which is needed to preheatThis is a PCB board designed for 2 channel relay module, with following features: Size 62x44mm Input signal type Active high All components are Through hole type Optocoupler EL817 OR PC817 4 PIN Use 1K resistor for 5 voltage relay application (2. 2k for 12V) LED size 3mm Transistor ULN2003 Terminal block connector XY128 or ZB128 for input and XY128 or ZB128 with 5mm pitch for out of relay Relay Normal sugar cube relay
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