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

2pcs 8 Channel DC 5V Relay Module with Optocoupler for R3 Mega 2560 1280 DSP Arm 16077

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

1 Channel 5V Relay Module with High/Low Level Trigger – Konnected

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3pcs DC 12V 2-Channel Relay Module With Isolated Optocoupler High And Low Level H/L Level Trigger Module Triggered By DC 12V

Two Channel 12V Relay Module With Optocoupler

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

DIANN 12pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Support High/Low Level Trigger - Yahoo Shopping

2pcs DC 24V Channel Relay Module With Isolated Optocoupler High And Low Level By

1/2/4/8 CHANNEL RELAY Module Board Support High Low Level Trigger 5V 12V 24V $9.34 - PicClick AU

Two Channel 12V Relay Module With Optocoupler

HiLetgo 12V 8 Channel Relay Module with Opto-Isolated High and Low Level Trigger

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