BroadLink SR4M Smart Radar Motion Sensor – mmWave Precision

BroadLink SR4M Radar Motion Sensor

Smart. Precise. Reliable.

Product Overview

The BroadLink SR4M is a state-of-the-art radar motion sensor designed for smart home automation. Utilizing millimeter-wave (mmWave) radar technology, it offers ultra-precise human presence detection — even when the person is stationary — making it far more advanced than traditional PIR sensors.

Key Features

✅ Millimeter-Wave Radar Technology

• Detects human presence with high precision, even when the person is sitting or lying still.

• Works effectively through obstacles such as thin glass or plastic.

✅ Smart Automation Support

• Compatible with BroadLink smart ecosystem and third-party platforms via Matter or standard APIs.

• Easily integrate into routines for lights, security systems, HVAC, and more.

✅ Adjustable Sensitivity & Range

• Customize detection range and sensitivity via app to suit your room size or application.

• Ideal for bedrooms, bathrooms, offices, and other indoor environments.

✅ Wide Detection Coverage

• Horizontal detection angle: up to 120°

• Detection range: up to 6 meters (adjustable)

✅ Compact & Minimalist Design

• Sleek, modern look that blends seamlessly with any interior décor.

• Ceiling or wall-mounted for optimal coverage.

Specifications

• Model: SR4M

• Detection Method: mmWave Radar (24GHz)

• Detection Range: Up to 6m (adjustable)

• Power Supply: USB Type-C

• Installation: Ceiling or wall-mounted

• Connectivity: Wi-Fi, supports Matter protocol

• Dimensions: Compact and discreet form factor

• App Control: BroadLink App (iOS & Android)

Use Cases

• Automate lights based on presence — no need for physical switches.

• Save energy by turning off devices when the room is unoccupied.

• Enhance security with precise motion alerts in key areas.

• Perfect for smart offices, living rooms, bathrooms, and hallways.

Why Choose SR4M?

The BroadLink SR4M offers next-gen presence detection that transforms the way you automate your smart home. Whether you're aiming for comfort, energy efficiency, or advanced security, this motion sensor is your ideal choice.