12V 4 Channel Relay Module with Optocoupler STM8 Calibration

Calibration

Anti saturation diode

Many modern consumer gadgets

where they are recovered and decoded into independent high-speed clock and data channels

RQ-50B has complete protection functions and 5G antivibration capability

12V 4 Channel Relay Module with Optocoupler STM8 Calibration12V 4 Channel Relay module is able to control various appliances and other equipment with a large current. It can be controlled directly by a Micro controller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic). Features LED Status indicator High quality screw terminals Mounting Holes Freewheeling Diode to protect your microcontroller Optocoupler to isolate the microcontroller Specification Operating Voltage 12V DC Channel 4 Switching Capacity