Xiaomi Smart Temperature and Humidity Monitor 3 Mini (QBH4312GL)

🧠 Overview

The Xiaomi Smart Temperature and Humidity Monitor 3 Mini is a compact indoor monitor that displays temperature and relative humidity at the same time. With a clear LCD screen, fast refresh, and Xiaomi Home integration (via a Bluetooth Mesh gateway), it helps you keep a comfortable and healthy home environment and automate compatible smart devices.

✅ Key features

• 🌡️ Dual display (temperature + humidity) for everyday comfort.
• 🧪 High-precision sensor: shows temperature changes down to 0.1°C and humidity changes down to 1%RH.
• 🔄 Updates about every 6 seconds for near real-time readings.
• 🔋 Long battery life: up to ~2 years (standard mode) or up to ~3 years (save battery mode; Xiaomi Home 10.0+ required).
• 📈 History tracking in the app (sync via Bluetooth Mesh gateway): up to 3 months stored locally and up to 6 months in the cloud.
• 🧩 Smart automation in Xiaomi Home (e.g., turn on a humidifier when humidity is low).
• 🧷 Flexible placement: tabletop stand or wall mounting with adhesive.

⚙️ Technical specifications

• Product name: Xiaomi Smart Temperature and Humidity Monitor 3 Mini
• Model: QBH4312GL
• Measurements: temperature, relative humidity
• Temperature display resolution: 0.1°C
• Humidity display resolution: 1%RH
• Temperature range: 0°C to 60°C
• Humidity range: 0% to 99% RH
• Display: LCD, screen area 42.8 × 35.1 mm, ~2.1"
• Bezel width: ~5.1 mm
• Product dimensions: 53 × 45.3 × 13 mm
• Battery: CR2450 coin cell
• Battery life: ~2 years (standard mode) / up to 3 years (save battery mode)
• Connectivity: Bluetooth (smart features via Bluetooth Mesh gateway)
• App: Xiaomi Home

🏠 Typical use cases

• Bedroom comfort monitoring 🛌
• Home office environment control 🧑‍💻
• Nursery / kids’ room tracking 👶

Note: The product is not waterproof and readings are intended as reference data for healthy living. ```