1. Product Overview
The NOKLEAD 6202 is a versatile digital thermometer and hygrometer designed for monitoring both indoor and outdoor temperature and humidity. It features a large LCD display with a backlight, a wireless outdoor sensor, and various indicators for comfort levels and trends.

Figure 1: Main unit and wireless outdoor sensor
Video 1: Product overview and feature demonstration.
2. Package Contents
- 1 x NOKLEAD 6202 LCD Digital Thermometer Hygrometer (Main Unit)
- 1 x Wireless Outdoor Sensor
- 1 x User Manual
Note: AAA batteries are not included and must be purchased separately (2 for the main unit, 2 for the outdoor sensor).
3. Setup Instructions
3.1 Battery Installation
- Open the battery cover on the back of the main unit.
- Insert 2 AAA batteries, ensuring correct polarity (+/-).
- Close the battery cover.
- Open the battery cover on the back of the wireless outdoor sensor.
- Insert 2 AAA batteries, ensuring correct polarity (+/-).
- Close the battery cover.

Figure 2: Main unit and sensor dimensions, showing battery cover and hanging hole.
3.2 Initial Pairing
Once batteries are installed in both units, the main unit will automatically search for the outdoor sensor. Ensure both units are within range during initial setup. The outdoor temperature and humidity should appear on the main unit's display.
3.3 Placement
- Main Unit: The main unit can be placed on a table using its durable stand or mounted on a wall using the hanging hole.
- Outdoor Sensor: Place the outdoor sensor in a location that is protected from direct sunlight and rain. The sensor must always be placed with the top facing upwards to prevent water ingress. The maximum transmission range is 100m/328ft in an open area.

Figure 3: Placement options for the main unit (tabletop or wall-mounted) and the outdoor sensor (wall-mounted, facing upwards).
4. Operating Instructions
4.1 Display Features
The large LCD screen displays the following information:
- Outdoor Temperature (OUT): Current outdoor temperature.
- Outdoor Humidity (OUT): Current outdoor humidity.
- Indoor Temperature (IN): Current indoor temperature.
- Indoor Humidity (IN): Current indoor humidity.
- Comfort Level Indicator: Icons (DRY, COMFORT, WET) indicating the air comfort based on humidity levels.
- Time Display: Current time (12/24H format selectable).
- Date Display: Current date.
- Temperature/Humidity Trend: Arrows indicating rising, falling, or stable trends for both temperature and humidity.
- MAX/MIN Record: Displays the maximum and minimum recorded temperature and humidity values over a 24-hour period.
- Backlight: Touch-sensitive backlight for easy reading in the dark.

Figure 4: LCD display features including temperature, humidity, trends, comfort level, time, and date.
4.2 Button Functions (Rear Panel)
- **°F/°C Selector:** Press to switch between Celsius (°C) and Fahrenheit (°F) temperature units.
- **Time Setting Button:** Press to enter time setting mode. Use '+' and '-' buttons to adjust values.
- **12/24H Selector:** Press to switch between 12-hour and 24-hour time formats.
- **'+' Button:** Used to increase values during time setting.
- **'-' Button:** Used to decrease values during time setting. Also used to display MAX/MIN values.
- **MAX/MIN Display:** Press the '-' button to cycle through current, maximum, and minimum temperature/humidity readings.
4.3 Air Comfort Level Indicator
The display shows an icon (DRY, COMFORT, WET) based on the indoor humidity level:
- DRY: Humidity 0-39%
- COMFORT: Humidity 40-69%
- WET: Humidity 70-99%

Figure 5: Air Comfort Level Indicator ranges.
5. Maintenance
- Battery Replacement: A low battery icon will appear on the display when batteries need to be replaced. Replace all batteries (main unit and sensor) simultaneously for optimal performance.
- Cleaning: Clean the unit and sensor with a soft, damp cloth. Do not use abrasive cleaners or immerse in water.
- Outdoor Sensor Protection: The outdoor sensor is designed to be waterproof, offering protection against bad weather. However, ensure it is placed with the top facing upwards to prevent rain from accumulating inside.

Figure 6: Low battery icon and waterproof sensor feature.
6. Troubleshooting
- No Display/Faint Display: Check if batteries are installed correctly and have sufficient charge. Replace batteries if necessary.
- No Outdoor Reading: Ensure the outdoor sensor is within the 100m/328ft transmission range of the main unit and there are no major obstructions (thick walls, metal objects) causing interference. Check the sensor's batteries.
- Inaccurate Readings: Ensure both units are placed away from direct heat sources, cold drafts, or high humidity areas (e.g., direct sunlight, vents, windows). Allow some time for the sensors to stabilize after initial setup or relocation.
- Clock Not Setting Automatically: The clock feature on this model does not automatically set via radio signal. It requires manual setting using the time setting buttons on the rear panel.
7. Specifications
| Feature | Specification |
|---|---|
| Model | 6202 |
| Display Type | Digital LCD with Backlight (3.7 inches) |
| Indoor Temperature Range | -10℃ ~ 60℃ (14˚F ~ 140˚F) |
| Outdoor Temperature Range | -50℃ ~ 70℃ (-58˚F ~ 158˚F) |
| Humidity Range (Indoor/Outdoor) | 20% ~ 95% RH |
| Temperature Resolution | 0.1 ℃ |
| Humidity Resolution | 1% RH |
| Temperature Accuracy | ±1°C |
| Humidity Accuracy | ±3-5% RH |
| Data Update Cycle | 10 Seconds |
| Power Type (Main Unit) | 2 x AAA Batteries (not included) |
| Power Type (Outdoor Sensor) | 2 x AAA Batteries (not included) |
| Wireless Transmission Range | Max 100m/328ft (in open area) |
| Style | Standing and Wall Hanging |
8. User Tips
- Optimal Comfort: Use the comfort level indicator to maintain ideal indoor conditions. If the indicator shows 'DRY' or 'WET', consider using a humidifier or dehumidifier to adjust the humidity for better health and comfort.
- Monitor Trends: Pay attention to the temperature and humidity trend arrows. These can help you anticipate changes in your environment and take proactive measures.
- MAX/MIN Records: Regularly check the MAX/MIN records to understand the daily fluctuations in temperature and humidity, which can be useful for managing indoor climate.
- Battery Life: To maximize battery life, avoid placing the outdoor sensor in direct sunlight, which can cause excessive heat and drain batteries faster.
9. Warranty and Support
For any issues or questions regarding your NOKLEAD 6202 Thermometer Hygrometer, please refer to the official user manual PDF for detailed warranty information and contact the seller for support.
A digital version of this user manual is available here: User Manual (PDF)





