A relay is used wherever a small low power device or power supply needs to switch on a much larger one, usually completely isolated from the signals power source, or at a much higher voltage than the signal could provide.
The Relay is the most common used module in actual applications such as home automation, and sometimes you need to control large current such as the air conditioning/water heater. That..
Din Rail 2 Relay 12V Coil
This 12V Dual Relay module is designed for current amplification and isolation protection of output loads. Applicable to PLC, microprocessor systems and time relays etc, amp..
Din Rail 4 Relay 12V Coil
This 12V 4 Relay module is designed for current amplification and isolation protection of output loads. Applicable to PLC, microprocessor systems and time relays etc, amplif..
Easy Mini PLC IO Controller
The Easy 412-DC-R Mini PLC IO Controller is an electronic control relay with built-in logic, timer, counter and time switch functions. This is a control and input device r..
Ethernet Relay Board
16-channel network module is a network-based relay control module base on 32bit system, This module can use the internet or intranet router control relay module, Thus,Complete re..
Mini D1 Relay Shield
You can use this module if you want to control the AC power (lights, home equipments), for WIFI D1 mini board. This is a very common Contact Relay for control VAC 110/220V (10A) ..
Mini Rboard ATMega328P Development Board For Arduino
Mini RBoard is an Arduino compatible mainboard, which is equipped with a relay, a nRF24L01 interface and a 433M RF Receiver interface. It can be u..
Relay 16 Way Module - 5V Opto Isolated
The 16 Way relay can trigger high voltage, high current load such as Motor, Lamps , AC load. It can be controlled by microcontrollers such as PIC, Arduino , Ras..
Relay 2 Channel - Opto Isolated
These are optically isolated relay modules having 5 Volt cube Relays. The relays are driven by a Opto-coupler which provides isolation between your Micro-controller, A..
Relay Module - Crowtail Connector
The SPDT relay module is a high performance single pole double throw relay that can operate by as much as 30A of current. When the relay does not work, COM and NC ha..
Solid State Relay 2A - 1 Channel
Compares with the traditional mechanical relay, the Solid State Relay (SSR) has many advantages: it has a longer life, with a much higher turn on/off speed and no noi..
USB Relay Board - 8 Way - 30A High Power
On-board square USB Interface, using imports Parallel FIFO bi-directional data transfer USB Control chip, which allows for a stable connection. Uses special r..
USR-WIFIIO-83 terminal controller is developed for the application in the field of smart home, Internet of Things, industrial control and so on. Remote monitoring and control can be easily realized by..