Electronics-Salon 1PCS Dual SPST-NO 10Amp Power Relay Module, AC/DC 12V Control Voltage.

Yeeco 30A High Current 12V Contactor Relay Switch Power Switch DC Power Switching Control Board Control Module Electrical Relay switches for Cooler Heater Refit Water Heater Control

DZS Elec 12V 2 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

HiLetgo 12V 1 Channel Relay Module With Optocoupler Isolation Support High or Low Level Trigger

2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security

10 Amp Mini Timer Time Delay Relay .2 Sec to 400 days 6V 12V 18V. Power On Off Delay, Cycling and Trigger

AKOAK 15amp Diode Axial Schottky Blocking Diodes for Solar Cells Panel,15SQ045 Schottky(20Pcs)

Anndason 6 Pieces Plastic PP Float Switch Fish Tank Liquid Water Level Sensor,Model: DP5200

Solidremote 12V - 24V Secure Wireless RF Remote Control Relay Switch Universal 2-Channel 433MHz Receiver with 2 FCC ID Transmitters for Garage Door Openers, Cars, LED Lights & More (KIT-1)

UCTRONICS DC 12V Programmable Multifunction Time Delay Relay Module with Segment LEDs Display & H/L Level Trigger for Smart Home, Automatic Control

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