PIR Motion Sensor – 433MHz Wireless Infrared Detector & Alexa

$23.11 $28.97

Smarter Home Security Starts with Reliable Motion Detection

The PIR Motion Sensor Infrared Detector is a compact, wireless smart home device designed to keep you aware of movement in and around your home. Compatible with 433MHz wireless security alarm systems and Amazon Alexa, this sensor integrates seamlessly into your existing smart home setup for effortless, voice-enabled monitoring.

Whether you're securing a doorway, hallway, living room, or garage, this passive infrared detector offers responsive, accurate human body detection — triggering alerts the moment motion is sensed.

Key Features

PIR Infrared Detection: Uses passive infrared technology to accurately sense human movement within its detection range
433MHz Wireless Compatibility: Works seamlessly with most 433MHz wireless home security alarm systems for easy integration
Alexa Compatible: Connect with Amazon Alexa for convenient voice-controlled smart home automation
Wireless Design: No complicated wiring required — quick and flexible placement anywhere in your home
Compact & Discreet: Low-profile housing blends into any room décor without drawing attention
Instant Alerts: Triggers your alarm system or smart home routine the moment motion is detected
Easy Setup: Simple pairing process gets you up and running in minutes

Perfect For

Home security alarm systems
Smart home automation routines
Entryways, hallways, living rooms & garages
Rental properties and offices

Made in Mainland China.

Frequently Asked Questions

Q: Is this PIR motion sensor compatible with my existing 433MHz alarm system?

A: Yes! This infrared motion detector is designed to be compatible with most standard 433MHz wireless security alarm systems. It pairs quickly and works alongside other 433MHz sensors and receivers in your setup.

Q: Does this motion sensor work with Amazon Alexa?

A: Yes, this smart home PIR sensor is compatible with Amazon Alexa, allowing you to incorporate it into your voice-controlled smart home automations and routines for a more connected home experience.

Q: Does this sensor require any wiring or professional installation?

A: No wiring is needed. The wireless design allows you to mount or place the sensor anywhere in your home with minimal effort. Setup is straightforward and can be completed in just a few minutes.

Q: Where is the best place to install this PIR motion detector?

A: For optimal coverage, install the sensor in a corner position at a height of around 1.8–2.4 metres (6–8 feet), angled toward the area you want to monitor — such as a hallway, entryway, or living room. Avoid pointing it directly at heat sources like radiators or windows with direct sunlight.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.