Xiaomi Mi Light Detection Sensor – Intelligent Light Automation for Smart Homes

The Xiaomi Mi Light Detection Sensor is designed to enhance smart home automation by continuously monitoring ambient brightness levels in your environment. This sensor measures light intensity in lux and sends real-time data to the Mi Home ecosystem, allowing connected devices to automatically respond to lighting conditions.

Using advanced light sensing technology, the sensor can measure brightness levels ranging from 0 lux (dark environments) up to 83,000 lux, making it suitable for indoor spaces, offices, hallways, and even areas exposed to natural sunlight.

When paired with compatible Xiaomi smart devices and a smart hub, the sensor enables automation scenarios such as turning lights on when a room becomes dark, adjusting brightness during the day, or activating motion sensor rules only when lighting conditions are low. These intelligent automations help improve comfort while reducing unnecessary energy usage.

Connectivity is handled via Zigbee 3.0, a low-power wireless protocol commonly used in IoT and smart home devices. This allows the sensor to communicate efficiently with a compatible Xiaomi gateway such as a smart home hub, ensuring reliable performance with minimal power consumption.

The device features a compact square design (approximately 40 × 40 × 12 mm) that blends easily into any environment. Installation is quick and flexible thanks to the magnetic base and adhesive mounting options, allowing placement on walls, ceilings, or metal surfaces.

Powered by a CR2450 coin battery, the sensor is designed for long-term operation while maintaining extremely low energy consumption. The sensor also supports reliable operation across a wide temperature range from −10°C to 50°C, ensuring stable performance in various environments.

With accurate brightness monitoring, low power consumption, and deep integration with Xiaomi smart home devices, the Mi Light Detection Sensor is an essential component for creating intelligent and energy-efficient home automation systems.

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Key Features

💡 Ambient Light Detection
Measures brightness levels from 0 to 83,000 lux for precise automation control.

📡 Zigbee 3.0 Connectivity
Low-power wireless communication with Xiaomi smart hubs.

🏠 Smart Home Automation
Automatically trigger lights, curtains, and other smart devices based on lighting conditions.

🔋 Low Power Consumption
Powered by a long-lasting CR2450 coin battery.

📱 Mi Home App Integration
Monitor brightness levels and create automation rules easily.

🧲 Flexible Installation
Magnetic base and adhesive mounting for easy placement.

📏 Compact Minimalist Design
Small and discreet design blends with modern interiors.

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Real-Life Benefits

✔ Automatically turn lights on when the room becomes dark
✔ Save energy by controlling lighting based on natural daylight
✔ Improve smart home automation accuracy
✔ Ideal for offices, living rooms, hallways, and bedrooms
✔ Works with other Xiaomi sensors for advanced automation
✔ Simple installation without wiring

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Technical Specifications

Product Name: Xiaomi Mi Light Detection Sensor

Model: GZCGQ01LM / YTC4043GL

Sensor Type: Ambient Light (Lux) Sensor

Detection Range: 0 – 83,000 lux

Detection Accuracy:
±2% (incandescent calibration)
±5% (other light sources)

Wireless Connectivity: Zigbee 3.0

Operating Frequency: 2405–2480 MHz

Maximum Output Power: <13 dBm

Battery Type: CR2450

Battery Voltage: 3V

Operating Temperature: −10°C to 50°C

Operating Humidity: 0–95% RH (non-condensing)

Water Resistance: IPX3

Dimensions: 40 × 40 × 12 mm

App Support: Xiaomi Home / Mi Home

Compatibility: Xiaomi Smart Home ecosystem (requires hub)

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What’s Inside the Box

1 × Xiaomi Mi Light Detection Sensor
1 × Mounting Base
1 × Adhesive Sticker
1 × User Manual

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