Amazon.com: 2 pcs 5V 2 Channel DC 5V Relay Module with Optocoupler High/Low Level Trigger Expansion Board : 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
NOYITO 6-Channel Relay Module 5V 12V 24V High Low Level Trigger with Optocoupler Isolation Relay Load AC 250V 10A DC 30V 10A (DC 5V, Blue): Amazon.com: Industrial & Scientific
AEDIKO 4pcs DC 5V Relay Module 2 Channel Relay Board with Optocoupler Support High or Low Level Trigger: Amazon.com: Industrial & Scientific
Amazon.com: CENTAURUS 5PCS NE555 Delay Relay Shield Timer Switch Adjustable Module 0 to 10 Second DC 12V NE555 Timer Delay Converter for Automotive Control System Electrical Equipment : Tools & Home Improvement
Amazon.com: AC 220V Timer Delay Module, Load 10A 250V AC/10A 30V DC Timer Delay Turn Off Adjustable Time Relay Switch(0~10Min) : Tools & Home Improvement
Amazon.com: 4 pcs DC 5V 1 Channel Relay Module Board Shield High/Low Level Trigger with Optocoupler : Industrial & Scientific
Amazon.com: Aoicrie 5Pcs DC 5V 1 Channel Relay Module Board Shield with Optocoupler Isolation Support High or Low Level Compatible Development Board Trigger : Electronics
Square D NEMA Style Control Relay, 24VAC, 10A @ 120/240/480/600V, 5A @ 125/ 250V, 18 Pins: Amazon.com: Industrial & Scientific
Tolako 5v 16 Channel Relay Module Board for Arduino with Optocoupler Protection Works with Official Arduino Board: Amazon.com: Tools & Home Improvement
Amazon.com: 214 Timer Relay Module, DC12V Adjustable Timer Module Signal Trigger Turn Off Delay Timer Switch for Intelligent Home, Burglar Alarm Delay : Electronics
Amazon.com: Intermediate Relay, Universal 8 Pin Plug Small Low Voltage DC 10A Control Max AC 250V/ 50HZ 2NO 2NC DPDT Electromagnetic Relay with LED Indicator (6V) : Industrial & Scientific
Finder 0-250V 5A, DPDT Plug-in Power Relay with 12v DC Coil: Amazon.com: Industrial & Scientific
Amazon.com: DZS Elec 12V 4 Channel High/Low Level Trigger with Optical Isolation Relay Module Fault Tolerant Design Load AC 0-250V/10A DC 0-30V/10A Circuit Switch Board : Industrial & Scientific
DZS Elec 5V 1 Channel Relay Optocoupler Isolation Module Red Board 3-5V High and 0-1.5V Low Level Triggered Load AC 0-250V / DC 0-30V 10A SCM IO Control: Amazon.com: Industrial & Scientific
Amazon.com: mankk Polarity Reverse Momentary Rocker Switch 12V DC 10A DPDT 6 Pin (ON)/Off/(ON) 3 Position Motor Control Toggle Switch with Jumper Wires for Car Boat Trailer Ect M-KCD2-223M-JT-X : Automotive
HiLetgo 2pcs 12V Single Bistable Self-Locking Relay Module Push to Start and Stop: Amazon.com: Industrial & Scientific
NEMA Control Relay, 4NO, 480VAC, 10A: Amazon.com: Industrial & Scientific
Amazon.com: SainSmart 2-Channel Relay Module : Automotive
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
Relay Module, 10A Input 90-250V Ac Plastic + Metal Solid State Relay Ac-Ac, Output 24-480V Ac for Industrial Automation Process: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger : Industrial & Scientific
Amazon.com: Oiyagai 5Pcs AC 250V 10A IEC320 C14 Male Power Cord Inlet Socket with Fuse Holder : Tools & Home Improvement
USB 4 Channel (10A) Relay Output Module,Board for Home Automation: Amazon.com: Industrial & Scientific
Amazon.com: Ethernet RJ45 TCP/IP Relay Remote Control Controller Network Web Server 8 Channels Relay Module Board 250V/AC 10A with Case(White) : Electronics
AEDIKO 8 Channel Relay Module DC 5V Relay Board with OPTO-Isolated Support High or Low Level Trigger: Amazon.com: Industrial & Scientific
Square D NEMA Style Control Relay, 24VDC, 10A @ 120/240/480/600V, 5A @ 125/ 250V, 10 Pins: Amazon.com: Industrial & Scientific
