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NOYITO 4 Channel Relay Module High Low Level Trigger with Optocoupler Isolation Load DC 30V AC 250V 10A for PLC Automation Equipment Control (4-Channel 12V): Amazon.com: Industrial & Scientific
Hilitand 8 Channel High Low Level Trigger Relay Module with Optocoupler for Smart Control(5V): Amazon.com: Industrial & Scientific
Amazon.com: ARCELI 5PCS 5V One Channel Relay Module Board Shield 5v Relay Module for PIC AVR DSP ARM for Relay : Electronics
5 Stück Relais Modul 5V, 1 Kanal Relaisplatine mit Optokoppler, High Level Trigger Relaismodul, Low Level Trigger Erweiterungsplatine, Relaisschalt Modul für Arduino 5 V/12 V/24 V (5V) : Amazon.de: Baumarkt
Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
Amazon.com: [2-Pack] DC 5V Relay Module 2-Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger : Industrial & Scientific
2 Channel Relay Module 5V 12V 24V Control Board with Optocoupler Isolation High and Low Level Trigger 50x41x18.5mm (24V): Amazon.com: Industrial & Scientific
5V DC Delay Relay Turn on/Turn Off Module, Delay Relay Delay with Timer Turn on/Delay Turn Off Switch Module (5V) - Amazon.com
Timer Delay Relay DC 5V 12V 24V On Off Timer Module Trigger Cycle Dual MOS Delay Control Board with Digital Tube Display and Protective Shell for Smart Home, Automatic Control - Amazon.com