Relay Module 8-channel relay 5/12V 10A, Optocoupler Isolation Style:12V 10A Switching frequency: 1

Switching frequency: 1

SD memory card socket

The comparator output signal clean

Light Current: 0

Relay Module 8-channel relay 5/12V 10A, Optocoupler Isolation Style:12V 10A Switching frequency: 1This 8 channel Relay module comes with Optocoupler protection and is an active low relay module which means that the relay will conduct when the input signal falls below 2V and if it is above 2V then the relay is turned off you can also make it an active module by changing the jumper position on the power module. You can use it to control both DC and AC lines and it also has LED indicators to indicate the state of operation of the module. It also has