This manual introduces the iHORN LH-331BL smart temperature and humidity meter, highlighting its compact size, high‑precision industrial sensor, and ability to display real‑time environmental data. The device can be paired with the Tmall Genie smart speaker for voice announcements and remote monitoring via the Tmall Genie app.
Installation steps cover mounting with 3M adhesive, connecting to Wi‑Fi, and pairing either by voice command or through the app. The guide also details operating instructions, measurement ranges, low‑voltage alerts, factory‑reset procedure, technical parameters, and the one‑year warranty terms. This manual is written in Chinese.
| Temperature detection range | -9.9°C ~ +55°C |
|---|---|
| Battery type | CR2450 (3 V) |
| Emission frequency band | 2402 MHz – 2480 MHz |
| Dimensions | 61.8 mm × 60 mm × 13.5 mm |
You can pair by voice using the command “天猫精灵，发现设备”, or by adding the device in the Tmall Genie app under “家居安防 → 温湿度计”.
The meter measures temperature from –9.9 °C to +55 °C and relative humidity from 0 % to 99 % RH.
Power on the device, long‑press the button for 5 seconds, then release; the screen will flash and the meter will enter pairing mode.
The product has a one‑year warranty from the date of purchase, with a 7‑day free‑replacement period.