Third Reality Smart Presence Sensor R3

The THIRDREALITY Smart Presence Sensor R3 is a compact, Zigbee 3.0-powered 4-in-1 multifunction device featuring advanced 60 GHz mmWave radar for precise human presence detection (even when still, via micro-movements like breathing), an RGB light for ambient/visual status indication, ambient light (Lux) sensing, and air quality (TVOC) monitoring. It acts as a Zigbee repeater to extend your mesh network, enables natural automations (e.g., lights stay on while present and auto-off when vacant), and supports platforms like Home Assistant (ZHA & Z2M), SmartThings, Aeotec, and Echo devices with built-in Zigbee hubs. USB-C powered (5V/1A) for always-on operation—no batteries needed. Ideal for bedrooms, bathrooms, and quiet spaces where traditional PIR sensors fail. Zigbee hub required.

Key Features:

• Simplified 60 GHz mmWave Presence Detection: Utilizing advanced 60 GHz millimeter-wave radar, this technology accurately detects real human presence even when you remain still by sensing subtle micro-movements such as breathing. It is ideal for bedrooms, bathrooms, and other quiet indoor spaces where traditional motion sensors fall short. Instead of complicated parameter adjustments, only the detection distance needs to be set to prevent false triggers.
• RGB Light with Visual Status Indication: The built-in RGB light is not only for ambient lighting, but also works as a visual indicator for presence, automations, or system status. Different colors or brightness levels can be used to clearly show room occupancy or smart home states at a glance.
• Presence + Light, Designed to Work Together: By combining always-on presence detection with an RGB indication light, R3 enables more natural automations—lights remain on while you're present and turn off only when the room is truly vacant, improving comfort and everyday energy efficiency.
• USB-C Powered & Zigbee Repeater: Powered via USB-C (5V/1A), R3 delivers stable, continuous operation without batteries. Using Zigbee 3.0, it integrates smoothly with platforms like Home Assistant (ZHA & Z2M) and also functions as a Zigbee repeater to help strengthen your mesh network.
• Ambient Light & Air Quality Awareness: Built-in ambient light (Lux) sensing and air quality (TVOC) monitoring provide additional environmental awareness to support advanced automations and insights when supported by your platform. Note: Availability of Lux and TVOC data depends on platform support. The indicator light will flash red when dangerous air quality is detected based on TVOC levels.
• Fast, Stable Zigbee 3.0 Connection: Powered by low-energy Zigbee 3.0, it offers instant integration with Home Assistant via ZHA or Z2M, SmartThings (2015/2018), Aeotec and Echo devices with built-in Zigbee hubs, including Echo (4th Gen), Echo Plus (1st & 2nd Gen), Echo Studio, Echo Show 8 (3rd Gen), Echo Show 10 (2nd & 3rd Gen), Echo Hub, Eero 6, Eero Pro 6.

Specifications:

• Product Dimensions: Approximately 2.5 × 2.5 × 1.5 inches (compact design for easy placement; confirm with your stock unit)
• Item Weight: Approximately 4-6 ounces (lightweight for desk/wall/ceiling mount)
• Power Source: USB-C (5V/1A) – no batteries required
• Manufacturer: Third Reality, Inc
• Country of Origin: China