Relay Modules for Arduino & Electronics

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Relay Modules for Arduino & Electronics – Control High-Power Loads with Low-Voltage Signals Explore our comprehensive range of relay modules, solid state relays (SSR), time delay relays, and optocoupler-isolated relay boards – designed for Arduino, Raspberry Pi, PLC, and DIY electronics projects . Switch AC/DC loads safely with 5V/12V/24V control signals. What's in This Collection Multi-Channel Relay Modules – 1/2/4/8-channel 5V/12V/24V optocoupler relay boards with high/low level trigger for Arduino & Raspberry Pi Solid State Relay (SSR) Modules – G3MB-202P and SSR-10DA/40DA DC-controlled AC solid state relays with aluminum heat sinks Time Delay & Timer Relay Modules – NE555 monostable timer switches, adjustable power-off delay relays, and LCD programmable timer relays Light & Sensor Relay Modules – LDR photoresistor relay modules 5V/12V/24V with automatic brightness detection Reed & Infrared Relay Modules – SIP-1A05 reed relays and IR receiver relay driver modules for remote control applications Wemos D1 Mini Relay Shield – 1-channel relay shield for ESP8266 IoT and smart home projects Why Choose Keszoox Relay Modules? ✅ Optocoupler isolation – protects your microcontroller from high-voltage spikes ✅ 5V/12V/24V compatible – works with Arduino, Raspberry Pi, ESP8266, PLC ✅ High/low level trigger options ✅ Bulk quantities in stock – ready to ship worldwide Browse our full relay module collection or explore our automotive and industrial relays at Keszoox.