HUABANG magnetic latching relay with shunt high accuracy energy meter relay remote control on off use US $1.40-$5.00
GEYA GRV8-01/02 AC220V Over Voltage and Under Voltage Adjustable Monitoring Voltage Relay US $7.42-$9.13
GEYA GRT8--S1 Asymmetric Cycler Timer Relay Modular Relay AC230 W240 1 SPDT Time Relay Timer Control US $6.94-$9.07
Taidacent 12V Vibration Detector Alarm Sensitivity Adjustable Sensor + Relay Vibration Cutout Switch Car Alarm Vibration Sensor US $20.89-$26.74