1. Introduction
The Qingping Temp & RH Monitor Lite is a compact, Bluetooth-compatible device designed to accurately measure and display ambient temperature and humidity. Featuring an easy-to-read LCD screen and support for mobile app connectivity, it allows for data storage and monitoring, helping you maintain a comfortable and healthy environment.

2. Package Contents
Please check the package for the following items:
- 1 x Qingping Bluetooth Thermometer and Hygrometer Lite (with CR2430 button battery installed)
- 1 x Wall Sticker
- 1 x User Manual
3. Product Overview
The Qingping Temp & RH Monitor Lite features a clear electronic ink segment code screen for easy readability and a high-precision industrial-grade sensor for reliable measurements.
Key Features:
- Clear LED Screen: Displays temperature and humidity clearly.
- Versatile Placement: Supports both desktop and wall-mounted modes.
- Ultra-Wide Viewing Angle: Nearly 180° for easy viewing from various positions.
- High-Precision Sensor: Swiss Sensirion industrial-grade sensor ensures fast response, accurate measurement, and no drift.
- Long Battery Life: Powered by a CR2430 button battery, lasting approximately one year at common room temperature.
- Bluetooth Connectivity: Allows connection to a mobile app for data storage and monitoring.
- Data Storage: Automatically records up to 30 days of temperature and humidity history data when connected to the mobile app.

4. Setup
4.1. Battery Installation
The device comes with a CR2430 button battery pre-installed. If replacement is needed:
- Gently open the back cover of the device.
- Remove the old CR2430 battery.
- Insert a new CR2430 button battery with the positive (+) side facing up.
- Close the back cover securely.

4.2. Placement Options
The Qingping Temp & RH Monitor Lite offers two convenient placement modes:
Desktop Mode:
To use the device on a flat surface:
- Locate the built-in bracket on the back of the device.
- Open the bracket to extend it.
- Place the device firmly on any desktop or flat surface.

Wall Mode:
To mount the device on a wall:
- Choose a suitable location on your wall.
- Peel off the protective film from the included wall sticker.
- Paste the wall sticker firmly onto the chosen wall surface.
- Attach the Bluetooth thermometer and hygrometer to the wall sticker. The device has a built-in magnet, and the wall sticker has a built-in metal patch, allowing for easy attachment and rotation to adjust the viewing angle.

5. Operating Instructions
5.1. Reading the Display
Once powered on, the device will immediately display the current temperature (in Celsius) and relative humidity percentage on its LCD screen. The display also shows a Bluetooth icon and battery level indicator.

5.2. Connecting to Mobile App
To access advanced features like data history and remote monitoring, connect the device to a compatible mobile app (e.g., Mi Home App or ClearGrass Air app).
- Download the Mi Home App or ClearGrass Air app from the App Store (iOS) or Google Play Store (Android).
- Ensure Bluetooth is enabled on your smartphone.
- Open the app and follow the on-screen instructions to add a new device.
- The app will guide you through the pairing process with your Qingping Temp & RH Monitor Lite.
- Once connected, the app will automatically record temperature and humidity history data for up to 30 days.

6. Maintenance
- Cleaning: Wipe the device gently with a soft, dry cloth. Do not use liquid cleaners or abrasive materials.
- Battery Replacement: Replace the CR2430 button battery annually or when the low battery indicator appears on the screen.
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures when not in use for extended periods.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display / Device not turning on | Dead battery or incorrect battery installation. | Replace the CR2430 battery, ensuring correct polarity. |
| Inaccurate readings | Device placed in an unsuitable environment (e.g., near heat sources, direct sunlight, or high humidity areas). Sensor obstruction. | Relocate the device to a stable environment. Ensure the sensor opening is clear of dust or debris. |
| Cannot connect to mobile app | Bluetooth is off on phone. Device is out of range. App not updated. | Ensure phone Bluetooth is on. Move device closer to phone. Update the app to the latest version. Restart both device and phone. |
| Data history not recording | Device not consistently connected to the app. | Ensure the device remains within Bluetooth range of your smartphone or a compatible gateway for continuous data logging. |
8. Specifications
| Parameter | Value |
|---|---|
| Product Name | ClearGrass Bluetooth Thermometer and Hygrometer Lite |
| Product Model | CGDK2 |
| Net Weight | 38 grams |
| Material | ABS |
| Dimensions (Diameter x Thickness) | φ60.5 mm x 13.7 mm |
| Screen Size Diameter | φ49.9 mm |
| Nominal Voltage | 3.0 V |
| Temperature Range | -9.9 °C ~ 49.9 °C |
| Humidity Range | 0 % ~ 99.9 % RH |
| Measurement Accuracy | 0.1 (for both temperature and humidity) |
| Wireless Connectivity | Bluetooth 5.0 |
| Battery Type | CR2430 Button Battery |
| Product Color | White |

9. User Tips
- Optimal Placement: For the most accurate readings, place the sensor in a central location away from direct sunlight, drafts, heating/cooling vents, and sources of moisture.
- Comfort Zones: Refer to general comfort guidelines for temperature and humidity. For example, a comfortable indoor temperature range is often considered 20-24°C (68-75°F) in winter and 23-26°C (73-79°F) in summer, with relative humidity between 20-60%.
- App Integration: Regularly check the mobile app for historical data to identify trends and make informed decisions about your environment.

10. Warranty and Support
This product comes with a standard manufacturer's warranty. For warranty claims, technical support, or further assistance, please contact the seller or refer to the official Qingping website for detailed support information. Keep your purchase receipt as proof of purchase.





