Ledgebit Wi-Fi Human Presence Detector

Transform your living spaces into intelligent, responsive environments with the Ledgebit Wi-Fi Human Presence Detector, an advanced ceiling-mounted sensor that revolutionizes home security and automation through its fusion of traditional PIR (Passive Infrared) motion detection and state-of-the-art mmWave radar technology operating at 5.8GHz or 24GHz frequencies.

This versatile device excels at identifying not just overt movements but also subtle micro-movements and prolonged static presence—such as someone reading, sleeping, or sitting motionless—capabilities that far surpass conventional PIR sensors prone to missing such scenarios or triggering false alarms from pets, curtains, or temperature fluctuations. Seamlessly integrating with the Tuya Smart Life app, it offers granular remote control over detection parameters, including adjustable sensitivity levels (1-9), customizable detection ranges (up to 9.5m), hold times (0-1500 seconds), and delay settings (0-10 seconds) to tailor performance to your specific needs, whether in a bustling living room, quiet bedroom, or professional office.

Enhanced with an integrated illuminance sensor measuring 0-3000 Lux, it enables context-aware automations like activating lights only in low-light conditions or linking with HVAC systems for energy-efficient occupancy-based control. Leveraging Wi-Fi 2.4GHz for robust mesh networking in larger smart home setups (compatible hub required), the Ledgebit detector supports voice commands via Alexa, Google Assistant, and other Tuya ecosystems, delivering instant push notifications, customizable alarms, and seamless scene linkages with cameras, sirens, or appliances.

Crafted from flame-retardant ABS plastic for durability and safety, this AC-powered sensor (100-250V) installs effortlessly on ceilings or walls, covering expansive areas with a 120°-150° horizontal field of view and up to 7m mounting height, all while consuming minimal energy for 24/7 reliability.

Ideal for elderly care monitoring, anti-theft security, or optimizing utility bills through precise presence detection, the Ledgebit Wi-Fi Human Presence Detector empowers you to create a safer, smarter, and more intuitive home without the limitations of battery-dependent devices or unreliable triggers.

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

Specifications

• Wireless Protocol: Wi-Fi Only (2.4GHz)
• Power Supply: AC 100-250V, 50/60Hz (wired installation, no batteries)
• Radar Technology: mmWave 5.8GHz or 24GHz (24GHz offers ±10cm accuracy, faster response, and higher unmanned detection reliability)
• Detection Capabilities: Motion range up to 10m; stationary presence up to 6m; micro-movement sensitivity for static scenarios like sleeping
• Detection Angle: 120°-150° horizontal, 60°-90° vertical
• Detection Range Adjustment: 0-9.5m (default 6m); ceiling mount height up to 8m
• Sensitivity Levels: 1-9 (app-adjustable for fine-tuning false alarm reduction)
• Hold Time: 0-1500 seconds (time detection remains active post-motion)
• Detection Delay/Latency: 0-10 seconds (customizable to prevent brief triggers)
• Illuminance Sensor: 0-3000 Lux for light-based automations
• Working Temperature: -20°C to +70°C (-10°C to +55°C operational range in some variants)
• Working Humidity: 0-95% RH (non-condensing)
• Material and Build: Flame-retardant ABS plastic; IP20 rating for indoor use
• Product Dimension: 6.5 x 6.5 x 4.2 cm
• Product Weight: 84 grams