AEDIKO 4pcs Relay Module DC 12V Relay Board 1 Channel with Optocoupler Isolation Support High or Low Level: Amazon.com: Industrial & Scientific
Amazon.com: NOYITO 4-Channel Optocoupler Photoelectric Isolator Module Level Voltage Converter Module PLC Signal Converter Module PNP NPN to PNP ( 12V to 5V) : Industrial & Scientific
Amazon.com: 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
ANMBEST 10PCS 12V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino : Amazon.sg: Industrial & Scientific
5 Stück 1 Kanal Relais Modul mit Optokoppler, 1-Way Relaismodul, 5V/12V/24V High und Low Trigger Erweiterungsplatine mit LED-Warnlampe, Relaismodul Bord Schild Relay-Module für Arduino (12V) : Amazon.de: Elektronik & Foto
NOYITO 2 Channel Relay Module with Isolated Optocoupler 5V 12V 24V High Low Level Trigger Module Triggered (Pack of 2) (5V, Red): Amazon.com: Industrial & Scientific
Amazon.com: R REIFENG 6pcs/lot 1 Channel 12V Relay Module Board Shield with Optocoupler Isolation Support High/Low Level Trigger : Industrial & Scientific
Relay Module with Optocoupler 1 Channel High Low Level Trigger Relay Module Board AC 250V/10A DC 30V/10A (5V): Amazon.com: Industrial & Scientific
Keenso 8 Kanal Optokoppler Relais Modul, 5V /12V /24V 8 Kanal Relais Board mit Optokoppler Hoch/Niedrig Trigger Erweiterungsplatine (5V) : Amazon.de: Gewerbe, Industrie & Wissenschaft
Amazon.com: Icstation 24V to 5V 8 Channel PLC-PNP Signal Converter, Optocoupler Isolation Board, Voltage Level Converter Module : Electronics
Amazon.com: HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger : Industrial & Scientific
Relay Module, 2 Channel Relay Module with Optocoupler Isolation High and Low Level Trigger for Arduino 5V/12V/24V(5V) : Amazon.co.uk: Business, Industry & Science
ZYAMY 2 Channel 12V Red Board Relay Module with Optocoupler Isolation Supports High and Low Level Trigger for SCM Household Appliance Control: Amazon.com: Industrial & Scientific
DC 5V 12V 24V 30A High Power 1-Channel Relay Module with Optocoupler H/L Level Triger (12V): Amazon.com: Industrial & Scientific
Amazon.com: 5V Relay Module with Optocoupler Isolation Support High and Low Level Trigger Relay Red Board (8 Channel 5V Relay) : Industrial & Scientific
5.6 × 2 × 0.7 inch 8 Channel Optocoupler Relay Module Board High Low Trigger 5V/12V/24V to choose from(12V) : Amazon.de: DIY & Tools
Keenso 2 Channel Relay Module with Optocoupler Low Level Trigger Expansion Board for Arduino 5V / 12V / 24V (12V) : Amazon.de: Business, Industry & Science