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Smart mmWave Radar Presence Sensor

Advanced Human Detection Technology

️ Important Requirements

ZigBee Version: Requires a Tuya-compatible ZigBee hub/gateway (sold separately) to operate. WiFi version does not require a hub.

Installation: Professional electrical installation recommended. Connects to 110-240V AC power. Compatible with US voltage standards.

Key Features

Ultra-Precise Detection

Advanced mmWave radar technology detects human presence, motion, and even stationary breathing during sleep. Two versions available: 5.8GHz (standard) and 24GHz (higher accuracy).

Built-in Light Sensor

Automatic brightness detection (0-500 Lux) enables smart lighting automation. Turn lights on only when it's dark AND someone is present.

16A Relay Included

Connect lights directly to the sensor (up to 3000W resistive load, 300W LED) or use as a standalone presence sensor for smart home automation.

Flexible Installation

Ceiling or wall mount options. Includes expansion screws and double-sided tape. Works with 110-240V AC power worldwide.

Technical Specifications

Network Protocol	WiFi or ZigBee 3.0 (choose variation)
Power Input	110-240V AC (US/International Compatible)
Detection Range	5.8GHz: Up to 11m \| 24GHz: 2.5-10m
Detection Angle	5.8GHz: 120°×120° \| 24GHz: 110°×110°
Sensitivity Levels	1-9 adjustable (default: 7)
Departure Delay	0.5 seconds to 25 minutes
Light Sensor Range	0-500 Lux ambient brightness detection
Relay Capacity	16A - Resistive load ≤3000W, LED ≤300W
Operating Temperature	-10°C to +50°C
Dimensions (Circular)	Φ105mm × 28mm (Φ4.13" × 1.1")
Dimensions (Ceiling)	Φ75mm × 61mm (Φ2.95" × 2.4")
App Control	Tuya Smart / Smart Life app

️ Smart Control Features

Three Relay Modes:

• Standard (Cloud): Remote on/off control via smartphone app
• Local (Automatic): Automatic light control based on presence detection
• Disabled: Use sensor for automation only without relay function

Advanced Parameter Settings:

Customize sensitivity, detection range, departure delay, entry filters, illumination thresholds, and block times to perfectly match your environment and usage scenario.

Compatibility & Smart Home Integration

WiFi Version: Works directly with Tuya Smart and Smart Life apps. No hub required.

ZigBee Version: Requires a Tuya-compatible ZigBee gateway. Compatible with ZigBee2MQTT for advanced home automation platforms like Home Assistant.

Create powerful automation scenes: link with smart lights, fans, air conditioners, and other smart devices for complete home automation.

Package Contents

• 1× mmWave Radar Presence Sensor
• 2× Expansion screws (circular version)
• 1× Double-sided adhesive tape (circular version)
• 1× User manual

Frequently Asked Questions

Q: What's the difference between 5.8GHz and 24GHz versions?

A: 24GHz offers higher sensitivity and more accurate departure delay timing (±1-3 seconds vs ±5-8 seconds for 5.8GHz). 24GHz is recommended for applications requiring precise timing, while 5.8GHz works perfectly for standard home automation.

Q: Do I need a hub for the WiFi version?

A: No, the WiFi version connects directly to your home WiFi network via the Tuya Smart or Smart Life app. ZigBee versions require a compatible ZigBee gateway.

Q: Can I use this sensor without the relay function?

A: Yes! You can disable the relay and use the sensor purely for presence detection to trigger other smart devices through app automation.

Q: Will this work with metal ceilings or in small enclosed spaces?

A: The 5.8GHz version has limitations in all-metal environments (elevators, metal-sealed bathrooms). The 24GHz version has significantly better performance in such scenarios.

Q: What is the detection range for stationary humans vs moving?

A: For 24GHz: 2-3m for stationary presence (breathing/micro-motion), 4-4.5m for active motion. For 5.8GHz: 2.5-3m stationary, 4-5.5m motion.