433Mhz Wireless door sensor (door switch)

This wireless door/window sensor operates on the 433 MHz frequency and works seamlessly with any microcontroller (Arduino, ESP32, etc.), whether powered at 3.3 V or 5 V. It features a PT2262 RF encoder paired with a wire antenna for reliable signal transmission.

Perfect for DIY home automation or security projects, this sensor installs in seconds using the included 3M double-sided adhesive: stick it to your door or window and it is ready to go. It provides a binary open/close detection output.

Specifications

• Transmission Frequency: 433 MHz
• RF Encoder: PT2262
• Power Supply: CR2032 battery (included)
• Output Type: Binary (open/closed)
• Installation: 3M double-sided adhesive tape included
• Compatible Voltage: 3.3 V and 5 V

Fully compatible with the RCSwitch library for Arduino.