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
5V/12V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger - AliExpress
How to use 1-Channel DC 5V Relay Module(High-Level Trigger) with Arduino&Raspberry Pi
1 Channel 5V Relay Module with High/Low Level Trigger – Konnected
DIANN 12pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Support High/Low Level Trigger - Yahoo Shopping
2 PCS DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V - AliExpress
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
5V 2-Channel Relay Module High Low Level Trigger with Optocoupler Isolation Relay Load AC 0-250V 10A DC 0-30V 10A Circuit Switch Board
Configurable Active High or Low Relay Module, with opto-isolated input
NOYITO 30A 1-Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load DC 30V AC 250V 30A for PLC Automation Equipment Control Industrial Control (1-Channel 5V) - Yahoo Shopping
HiLetgo 2pcs DC 24V 1 Channel Relay Module with Opto Isolation Support High or L
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
[2-pack] DC 12V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger
5V 1 Channel Level Trigger Optocoupler Relay Module For Arduino
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
HiLetgo DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module for ArduinoPack of 2pcs
ALMOCN 6Pcs DC 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger : Industrial & Scientific