5V/9V/12V/24V 1/2/4 Channel Relay + High Low Level Trigger Optocoupler Support

High Low Level Trigger 5V/9V/12V/24V 1/2/4/8 Channel Relay Module +Optocoupler

5V/9V/12V/24V 1/2/4 Channel Relay + Optocoupler Support High/Low Level Trigger

5V/9V/12V/24V 1/2/4 Channel Optocoupler Relay Support High Low Level Trigger

5V/9V/12V/24V 1/2/4 Channel Relay + High Low Level Trigger Optocoupler Support

5V/9V/12V/24V 1/2/4 Channel Relay + Optocoupler Support High Low Level Trigger

5V/9V/12V/24V 1/2/4 Channel Relay +Optocoupler Support High Low Level Trigger

1 channel DC 5V/9V/12V/24V Optocoupler Relay Module Support High and Low Trigger