Zigbee PIR Sensor With 24G MmWave Radar Luminance Battery Powered Z2M Gateway

Overview

Meet a next‑level presence sensor that combines a traditional PIR (passive infrared) detector with a 24 GHz mmWave radar for reliable occupancy awareness—powered by a small battery and designed to integrate with your Zigbee ecosystem. By using PIR to sense movement first and then activating the mmWave radar for precise “presence” verification, this device minimizes false positives while still catching genuine occupancy in rooms, hallways, and entryways. It also continuously records luminance levels, giving you actionable context for lighting automation and safety scenarios.

What sets it apart

• Dual-technology presence detection: PIR initiates motion detection and only then activates the 24G mmWave radar for static presence verification, reducing false alarms from pets or fluttering curtains.
• Luminance sensing: monitors ambient light with a 0–3000x range, providing meaningful data to optimize lighting scenes and energy use.
• Low power, long life: ultralow quiescent current (< 65 µA) supports extended battery life in a compact form factor.
• Battery powered, cable-free: uses two LR03 AAA cells (not included), enabling flexible placement without wiring.
• Two gateway variants for flexible ecosystems: - Tuya Zigbee version works with Tuya/Smart Life apps and gateways. - Z2MQTT Zigbee version works with Zigbee2MQTT on Home Assistant via a gateway. Note: Neither version is compatible with ZHA as described, and neither version supports Alexa or Google Assistant voice control.
• Range and sensitivity tailored for real rooms: static detection up to 3.5 meters; PIR motion up to 5 meters; static detection sensitivity is adjustable while PIR sensitivity remains fixed.
• Operational durability: wide operating temperature (-10°C to 55°C) and humidity tolerance (up to 95% RH), CE and RoHS certified, built for real-world environments.

How it works

The device primarily detects human motion using a PIR sensor. When PIR flags movement, the 24 GHz mmWave radar engages to confirm presence and capture a stable occupancy signal. If there is no movement, the radar stays dormant, preventing false “presence” readings from static objects. This two‑stage approach ensures reliable occupancy data while conserving battery life. The sensor uploads luminance and presence data when changes occur, and after initial setup, it reports updates only when new data is generated.

Key specifications

• Zigbee 3.0
• LR03 AAA × 2 (not included)
• DC 3V
• < 65 µA
• 0–3000x
• up to 3.5 meters
• up to 5 meters
• -10°C to 55°C, <95% RH
• CE, RoHS
• Mainland China
• Zigbee devices must connect to a Zigbee gateway to function; two version options available to match your ecosystem (Tuya Zigbee version or Z2MQTT Zigbee version).

Compatibility and setup

Choose the version that matches your smart home workflow:

• Tuya Zigbee version: Works with Tuya Zigbee gateways and the Tuya/Smart Life apps. Not compatible with ZHA.
• Z2MQTT Zigbee version: Designed for Zigbee2MQTT on Home Assistant via the appropriate gateway. Not compatible with ZHA. This version does not integrate with Alexa or Google Assistant.

Important: After mounting, align the sensing surface with the area you want to monitor. If you experience intermittent false negatives, adjust the Presence Keep Time to 60 seconds or longer, or increase the Static detection sensitivity to 8x as needed.

Ideal use cases

• Entryways and hallways where you want reliable presence data without constant false alerts.
• Offices and meeting rooms for occupancy-based lighting and security automation.
• Residential spaces where battery-powered, wire-free installation is a priority.
• Smart lighting scenes that benefit from accurate ambient luminance readings to optimize energy use.

What’s included and setup tips

Power the device with two LR03 AAA batteries (not included). Pair it with your Zigbee gateway that matches the chosen version (Tuya Zigbee or Zigbee2MQTT). Ensure your gateway supports Zigbee 3.0 for best compatibility and use the luminance and presence data to drive automations like smart lighting, climate adjustments, or security alerts. Keep the sensing surface clean and unobstructed, and verify that the gateway has a stable network connection to ensure timely data reporting.

Care and maintenance

Periodic battery replacement will be the primary maintenance task. Clean the sensor surface gently to maintain accurate detection, and re-check alignment if you relocate the device. As a low‑power device, it’s designed to deliver long‑term, maintenance‑light operation in real rooms while staying unobtrusive in everyday living spaces.

Why choose this sensor over simpler options

A simple motion sensor can miss stationary occupancy and be prone to false positives. This Zigbee PIR + 24G mmWave radar sensor delivers more reliable presence data by requiring motion to trigger radar verification, then coupling it with ambient light data for smarter automations. The two gateway variants give you a practical path to integrate into existing Tuya ecosystems or Zigbee2MQTT setups, while respecting real-world constraints like battery power and non-support for ZHA/Alexa/Google Assistant.

Key takeaways

• Dual-detection approach for reliable presence while preserving battery life.
• Ambient light sensing adds valuable context for lighting automation.
• Two gateway options tailor the device to your current smart home setup.
• Clear operating limits and practical tips to fine-tune performance.

SPECIFICATIONS, compatibility, and usage details reflect real-world needs for smart homes that want accurate occupancy data without increasing wiring, power consumption, or false alarms.