Ledgebit Wi-Fi Human Presence Detector – Ceiling Mount

Transform your living spaces into responsive, efficient environments with the Ledgebit Wi-Fi Human Presence Detector – Ceiling Mount, a ceiling-mounted detector powered by 5.8GHz millimeter wave (mmWave) radar technology. This Wi-Fi variant connects directly to your 2.4GHz home Wi-Fi network—no separate hub required—making it an accessible choice for straightforward setups while delivering precise detection of human presence, including both active motion and stationary states (such as sitting quietly, reading, sleeping, or subtle micro-movements like breathing or typing). It significantly outperforms traditional PIR motion sensors, which frequently miss static presence or generate false alarms from pets, heat sources, air currents, or curtains.

The device integrates natively with the Tuya Smart Life app (also known as Smart Life), enabling remote monitoring, configuration, real-time push notifications, and automation scenes. You can link it to other Tuya-compatible devices—like smart lights, plugs, fans, AC units, or cameras—for occupancy-based control: turn on lights or HVAC when someone enters a room, dim or switch off when vacant, or trigger alerts for security/elderly monitoring. The embedded illuminance sensor (0-3000 Lux) adds intelligence by factoring in ambient light levels, so automations activate only when needed (e.g., night-time pathway lighting or avoiding daytime waste). Many Tuya Wi-Fi sensors in this category support broader ecosystems via the Tuya platform, including voice control with Alexa or Google Home, IFTTT applets, or even Home Assistant integration (though confirm exact compatibility in the app, as it varies by firmware and region).

The 5.8GHz mmWave radar excels at human-focused detection, penetrating non-metallic obstacles to some degree and ignoring non-human interference for reliable occupancy sensing. Ceiling mounting optimizes coverage in rooms like bedrooms, living areas, offices, or hallways, providing wide-area oversight without the need for batteries—it’s AC-powered for always-on reliability. Constructed from durable ABS plastic, it’s suited for indoor use across typical home conditions.

This Wi-Fi model prioritizes ease of installation and direct connectivity over Zigbee’s mesh networking advantages. The Wi-Fi version offers simpler setup (connect to your router via the app) but may face occasional cloud dependency or router signal issues in weak-coverage areas. Wi-Fi models often consume slightly more power (though still negligible since it’s wired) and can be more prone to network congestion in device-heavy homes, but they eliminate hub costs and complexity—ideal if your setup is small-to-medium or you prefer minimal extra hardware.

For applications like energy optimization (reduce bills by auto-shutting unused appliances), pet-friendly homes (ignores animal movement), security (instant alerts without cameras), or elderly care (detect prolonged stillness), this sensor provides cost-effective, privacy-respecting presence detection—no audio or video capture involved.

To expand your setup, check out our full Smart Devices Collection.

Specifications

• Wireless Protocol: 2.4GHz Wi-Fi (direct connection to router; optional Zigbee 3.0 variant exists for hub-based mesh networking)
• Power Supply: AC 80-250V, 50/60Hz
• Radar Technology: 5.8GHz mmWave radar (excels at human-specific detection with minimal false positives)
• Detection Capabilities: Motion range up to 10m (0-1000 cm); stationary presence up to 6m (0-600 cm); sensitive to micro-movements like breathing; general coverage 10-20m under ideal conditions
• Detection Angle: Approximately 120° horizontal (typical for ceiling-mounted mmWave sensors)
• Detection Range Adjustment: App-configurable (Tuya sensors allow 0-9.5m tuning for room-specific optimization)
• Sensitivity Levels: Adjustable via app (common in Tuya ecosystem for balancing detection accuracy and false alarm reduction)
• Hold Time and Delay: Customizable in app (e.g., hold detection post-absence; similar models support 0-1500s hold and 0-10s delay to handle brief interruptions)
• Illuminance Sensor: 0-3000 Lux for ambient light-based automations
• Working Temperature: -10°C to +55°C
• Working Humidity: 0-95% RH (non-condensing)
• Material and Build: ABS plastic (flame-retardant properties common); IP20-equivalent for indoor use
• Certifications: Likely CE, RoHS (standard for Tuya products; confirm with supplier)
• Compatibility: Tuya/Smart Life app with OTA updates; integrates with Alexa, Google Home, Home Assistant (via Zigbee2MQTT), IFTTT; supports scenes with 100+ devices
• Product Dimensions: Compact ceiling-mount design (around 9-10cm diameter based on similar models)
• Product Weight: Lightweight (under 100g typical)