Relay Module

It is an automatic switching module. When the battery is dead or there is a problem with the battery..

It is a multifunction delay relay module.LCD display, very clear, easy to use, powerful. It can be w..

This module can be used for light detection, brightness detection, with power indicator light (red) ..

This module can be used for light detection, brightness detection, with power indicator light (red) ..

Buy the new XH-M131 DC 12V Light Control Switch Photoresistor Relay Module. The Light Detection and ..

This product is an industrial 32-ch relay module controlled via RS485 bus, adopts Modbus RTU protoco..

Waveshare Industrial 6-ch Relay Module for Raspberry Pi Zero, RS485/CAN with Isolated Protections.Fe..

This is a Thermal Sensor Relay Module. It uses a temperature detection via potentiometer adjustment ..

Industrial digital output expansion board based on ISO8200AQ galvanic isolated octal high-side smart..

The GSM Gate Opener RTU5034 is a powerful GSM Relay, it is a very simple device that can be used for..

This is a Digital Timer Relay module With a dual display. In this Module, you will get a two-timing ..

This RC relay enables easy control of large, electrically isolated loads in radio control (RC) syste..

It is a Photosensitive Resistance Sensor Relay Module. When it is brighter, the module relay pulls i..

It is a Photosensitive Diode Relay Module. The light brightness detection, detection, through the po..

This is a PC817 8 Channel Optocoupler Isolation Board. The onboard with 8-Channel 817 are independen..

This is a PC817 4 Channel Optocoupler Isolation Board. Onboard with 4-Channel 817 are independent, s..

This is a PC817 2 Channel Optocoupler Isolation Board. Onboard with 4-Channel 817 are independent, s..

This is a normally open thermal electric actuator for the underfloor heating manifold. It controls w..

This is a normally close thermal electric actuator for the underfloor heating manifold. It controls ..

This NE555 Delay Monostable Switch Module item is a timer switch module, based on the NE555 chip, hi..

This NE555 Delay Monostable Switch Module item is a timer switch module, based on the NE555 chip, hi..

This NE555 Delay Monostable Switch Module Time Delay Switch is a timer switch module, based on NE555..

The M-Shape Aluminum Single Phase Solid State Relay (SSR) Heat Sink Base is a compact and efficient ..

With optocoupler isolation, the control signal and the power of the controlled device are isolated, ..

It is a Humidity Sensitive Switch Relay Module. The module uses a high-quality HR202 humidity sensor..