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Width of the top white plastic part: 41 mm
Non-Rechargeable battery
Natural gas leakage
Power supply: USB 5V/1A
Relay Module 4 Channels - 5V) L7812CV Width of the top whiteIntroduction : It is a 4 channel relay board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc. It is also able to control various appliances and other equipments with large current. used where it is necessary to control a circuit by a low power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal.
US$ 25.00
US$ 1677.84