12V relay with AC contact capacity of 10A 250V and optocoupler protection.
The onboard power supply module does not need an external power supply. I / O port driver is active low.
The module can be used as a microcontroller development board module and also as appliance control, PLC extended output.
It is using the industry’s top-quality isolation optocouplers, strong anti-jamming ability, stable performance.
Each relay common terminal “COM” are independent, user-friendly access to different signals, each relay are normally closed and normally open with the port.
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