HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V

Can set high or low level trigger with jumper, to meet the demand of more trigger applications; With patch optical isolation, strong drive ability and

HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V : Industrial & Scientific

HiLetgo 2pcs DC 24V 1 Channel Relay Module with Opto Isolation Support High or Low Level Trigger

FainWan Relay Module One Way 30A Optocoupler Isolation Relay Module High Power Relay High/Low Level Trigger YYG-2(12VDC) - Yahoo Shopping

Configurable Active High or Low Relay Module, with opto-isolated input

FainWan Relay Module One Way 30A Optocoupler Isolation Relay Module High Power Relay High/Low Level Trigger YYG-2(12VDC) - Yahoo Shopping

5V/12V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - AliExpress

CenryKay DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V(6PCS) - Yahoo Shopping

5V Relay Module with Isolated Optocoupler High or Low Level Trigger Relay Board 2 Channel 5V Relay Module Relay Switch for Raspberry Pi Arduino Relay DIY 5PCS (5V-2Channel) : Industrial

Aoicrie 5Pcs DC 12V 1 Channel Relay Module Board Shield with Optocoupler Isolation Support High or Low Level Compatible Development Board Trigger : Electronics

5V/12V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - AliExpress

5V/12V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - AliExpress

DC 12V 1 Channel Relay Module High Low Level Adjustable Trigger Board Optocoupler Isolated Output

The module can be high or low by a jumper setting trigger; Fault-tolerant design, even if the control line is broken, the relay will not operate; The

HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino

Can set high or low level trigger with jumper, to meet the demand of more trigger applications; With patch optical isolation, strong drive ability and

HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V