1. Introduction
Thank you for choosing the DOQAUS Digital Hygrometer Indoor Thermometer. This device is designed to provide accurate and fast readings of indoor temperature and humidity, helping you maintain a comfortable and healthy living environment. Its compact design and multiple mounting options make it versatile for various indoor spaces.
Figure 1: Three DOQAUS Digital Hygrometer Indoor Thermometers.
2. Product Features
- High Accuracy & Fast Refresh: Provides precise temperature (±1°F) and humidity (±3%~5% RH) readings, refreshing every 5 seconds for dynamic environment monitoring.
- Air Comfort Indicator: Features three distinct face icons (DRY, COMFORT, WET) to visually indicate air conditions, assisting in humidity regulation.
- Clear LCD Display: A 2.3-inch display with large, bold numbers ensures easy readability from various angles.
- Temperature Unit Switchable: Easily switch between Celsius (°C) and Fahrenheit (°F) with a dedicated button.
- Compact and Portable: Small and lightweight design allows for easy placement and portability.
- Multiple Mounting Options: Includes a table stand, magnet for attaching to metal surfaces, and a hanging hole for wall mounting.
Figure 2: Key features of the DOQAUS Digital Hygrometer.
3. Setup
3.1 Unboxing and Initial Setup
Upon receiving your DOQAUS Digital Hygrometer, carefully remove it from its packaging. The device comes with a pre-installed CR2032 battery. Remove the protective film from the screen before use.
Video 1: Demonstrates unboxing, removing protective film, and initial setup of the hygrometer.
3.2 Battery Installation
The device uses one CR2032 battery, which is included and pre-installed. To replace the battery:
- Locate the battery compartment on the back of the unit.
- Use a small tool (like a coin or screwdriver) to gently open the battery cover.
- Remove the old CR2032 battery.
- Insert a new CR2032 battery with the positive (+) side facing up.
- Close the battery cover securely.
Figure 3: Rear view of the hygrometer, indicating battery and C/F switch.
3.3 Temperature Unit Selection
To switch between Celsius (°C) and Fahrenheit (°F), locate the °F/°C switchable button on the back of the device (refer to Figure 3). Press this button to toggle between the two temperature units.
4. Operating Instructions
4.1 Reading the Display
The large LCD display shows the current temperature at the top and humidity percentage at the bottom. Readings are updated every 5 seconds to provide real-time data.
Figure 4: Illustration of the device's fast response and refresh rate.
4.2 Air Comfort Indicator
Below the humidity reading, a small face icon indicates the air comfort level:
- 😟 DRY: Humidity is less than 40% RH.
- 🙂 COMFORT: Humidity is between 40% and 60% RH.
- 😵 WET: Humidity is greater than 60% RH.
Figure 5: Explanation of the Smart Comfort Indicator.
4.3 Placement and Mounting Options
The DOQAUS Digital Hygrometer offers flexible placement options:
- Table Stand: Utilize the integrated foldable stand on the back to place the device on any flat surface, such as a desk, shelf, or bedside table.
- Magnet Attaching: The strong magnet on the back allows for secure attachment to metallic surfaces like refrigerators or metal cabinets.
- Wall Hanging: Use the hanging hole on the back to mount the device on a wall using a small nail or hook.
Figure 6: Various mounting options for the hygrometer.
This versatility makes it suitable for various environments including baby rooms, kitchens, bedrooms, greenhouses, reptiles terrariums, cellars, incubators, and offices.
Figure 7: Examples of suitable environments for the hygrometer.
5. Specifications
| Feature | Detail |
|---|---|
| Brand | DOQAUS |
| Model Number | 655 |
| Product Dimensions | 1.8"W x 2.3"H |
| Item Weight | 0.1 Kilograms (3.52 ounces) |
| Battery Type | 1 x CR2032 (included) |
| Mounting Type | Hanging Hole, Tabletop Stand, Magnet Attaching |
| Operating Humidity Range | 10% to 99% RH |
| Temperature Range | -58°F to 158°F (-50°C to 70°C) |
| Temperature Accuracy | ±1°F (±0.56°C) |
| Humidity Accuracy | ±3%~5% RH |
| Refresh Rate | Every 5 seconds |
Figure 8: Display size comparison.
Figure 9: High precision digital thermometer testing.
6. Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or immerse the device in water.
- Storage: If storing for an extended period, remove the battery to prevent leakage. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Replacement: Replace the CR2032 battery when the display dims or stops functioning. Refer to section 3.2 for instructions.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display or dim display | Low or dead battery. | Replace the CR2032 battery (refer to section 3.2). |
| Inaccurate readings | Device placed in an area with extreme temperature/humidity fluctuations (e.g., near a vent, window, or direct sunlight). Sensor obstruction. | Relocate the device to a stable environment. Ensure the ventilation holes on the device are not blocked. Allow 15-30 minutes for readings to stabilize after relocation. |
| Comfort indicator not changing | Humidity level is consistently within one range. | This is normal operation. The indicator will change only when humidity crosses the defined thresholds (40% or 60%). |
8. Warranty and Support
DOQAUS products are designed and manufactured to the highest quality standards. For warranty information or technical support, please contact DOQAUS customer service through the retailer's platform or visit the official DOQAUS website. Please have your product model number (655) and purchase date ready when contacting support.
For more information and product updates, visit the DOQAUS Store on Amazon.