Relay Module, 24V Magnetic Control Switch Relay Module Hall Sensor Module Alarm AC 220V Switch: Amazon.com: Industrial & Scientific
Finder 0-250V 16A, SPDT Plug-in Power Relay with 24v DC Coil: Amazon.com: Industrial & Scientific
1 Channel Relay Module Interface Board Shield for Arduino 5V Low Level Trigger One PIC AVR DSP ARM MCU DC AC 220V: Amazon.com: Industrial & Scientific
3-Phase Phase Sequence Relay, AC 380V Overvoltage undervoltage Adjustable - Phase Loss and Incorrect Monitoring Protector, for Motor Reverse Protection: Amazon.com: Industrial & Scientific
Eujgoov On Off Twin Timer Relay Knob Control Time Switch Short Period Repeat Cycle Intermittent Timer Interval Timer Day Night or 24 Hour Operation ATDV-YC 6S-60M(AC(110/220v)) - - Amazon.com
5V Relay Module with Optocoupler Isolation Support High and Low Level Trigger Relay Red Board (8 Channel 5V Relay)