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
SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA; User-friendly interface design, all interfaces are available
HiLetgo 2pcs DC 24V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 24V
2pcs 8 Channel DC 5V Relay Module with Optocoupler for R3 Mega 2560 1280 DSP Arm 16077
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
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
DC 12V 4-Channel Relay Module, Optocoupler Isolator
1 Channel 5V Relay Module with High/Low Level Trigger – Konnected
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
2Pcs 8 Channel 24V Relay Module High Low Level Trigger with Optocoupler Isolation Load 8 Ways Relay Switch Module DC 30V AC 250V 10A Home Intelligent Control Module - Yahoo Shopping