This relay module is 5V active low.
It is an 4-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as For Arduino, AVR, PIC, ARM, PLC, etc.
It is also able to control various appliances and other equipments with large current.
Standard interface can be directly connected with microcontrollers.
Red working status indicator lights are conducive to the safe use.
Widely used for all MCU control, industrial sector, PLC control, smart home control.
Working voltage: 5V
Channel: 4 channel
Item size: approx. 7.1 x 5 x 1.3cm
Net weight: 41.3g