1. Introduction
Thank you for purchasing the Levenhuk Wezzer Teo TH40 Thermohygrometer. This device is designed to provide accurate measurements of indoor and outdoor temperature and humidity, along with time, date, alarm, and weather forecast functions. Please read this manual carefully before use to ensure proper operation and to prolong the life of your device.
2. Package Contents
The Levenhuk Wezzer Teo TH40 Thermohygrometer kit includes the following items:
- Main Thermohygrometer Unit
- Wireless Remote Sensor
- USB Cable (for main unit power)
- User Manual and Warranty Card
Image 2.1: Contents of the Levenhuk Wezzer Teo TH40 package.
3. Safety Information
Please observe the following safety precautions to prevent damage to the device or injury to yourself:
- Do not expose the device to extreme temperatures, direct sunlight, or high humidity.
- Avoid dropping or subjecting the device to strong impacts.
- Do not attempt to disassemble or repair the device yourself. Contact qualified service personnel.
- Keep batteries out of reach of children. Dispose of used batteries properly according to local regulations.
- Use only specified power sources (AAA batteries or 5V USB adapter).
4. Product Overview
The Levenhuk Wezzer Teo TH40 consists of a main display unit and a wireless remote sensor.
4.1 Main Unit
Image 4.1: Main unit and wireless remote sensor.
The main unit features a backlit color screen displaying indoor/outdoor temperature and humidity, time, date, and weather forecast icons.
Image 4.2: Rear view of the main unit with control buttons.
Main Unit Controls (Rear Panel):
- SET Button: Enters settings mode, confirms selections.
- ALARM Button: Activates/deactivates alarm, enters alarm settings.
- UP (▲) Button: Adjusts values up, changes display mode.
- DOWN (▼) Button: Adjusts values down, changes display mode.
- CH (Channel) Button: Switches between outdoor sensor channels.
Main Unit Controls (Side Panel):
- DC 5.0V Port: For external power supply via USB cable.
- Light/Snooze Button: Activates backlight, snoozes alarm.
Image 4.3: Side view showing power port and Light/Snooze button.
4.2 Wireless Remote Sensor
The remote sensor measures outdoor temperature and humidity and transmits data wirelessly to the main unit. It has a small LED indicator and a channel switch inside the battery compartment.
5. Setup
5.1 Powering the Main Unit
The main unit can be powered by either AAA batteries or an AC power adapter via the USB cable.
- Battery Installation: Open the battery compartment cover on the back of the main unit. Insert 3 AAA batteries (not included), observing the correct polarity (+/-). Close the cover.
- AC Power (Optional): Connect the provided USB cable to the DC 5.0V port on the side of the main unit and plug the other end into a 5V, 1000mA USB power adapter (not included) or a compatible USB port.
Note: Using AC power will keep the backlight continuously on. When powered by batteries only, the backlight will turn off after a few seconds to conserve power and can be activated by pressing the Light/Snooze button.
5.2 Powering the Remote Sensor
- Open the battery compartment cover on the back of the remote sensor.
- Insert 2 AAA batteries (not included), observing the correct polarity (+/-).
- Inside the battery compartment, select a channel (1, 2, or 3) using the small switch. If using only one sensor, select channel 1.
- Close the cover. The sensor will immediately begin transmitting data.
5.3 Pairing the Remote Sensor
After powering both units, the main unit will automatically search for and connect to the remote sensor. This may take a few minutes. Ensure the sensor is within range (up to 80 meters line-of-sight) of the main unit.
- If the outdoor readings do not appear, press and hold the CH button on the main unit for 3 seconds to initiate a manual search for the sensor.
- To connect additional sensors (up to 3 total), set each sensor to a different channel (1, 2, or 3) before powering them on. The main unit will display data for each connected sensor, which can be cycled using the CH button.
6. Operating Instructions
6.1 Initial Settings (Time, Date, Temperature Unit)
- Press and hold the SET button for 3 seconds to enter time setting mode. The hour digit will flash.
- Use the UP (▲) or DOWN (▼) buttons to adjust the hour.
- Press SET to confirm and move to the next setting (minute, year, month, day, 12/24-hour format, temperature unit °C/°F).
- Repeat steps 2 and 3 for each setting.
- Press SET again to exit settings mode.
6.2 Alarm Clock Settings
- Press the ALARM button once to display the alarm time.
- Press and hold the ALARM button for 3 seconds to enter alarm setting mode. The hour digit will flash.
- Use the UP (▲) or DOWN (▼) buttons to adjust the hour.
- Press ALARM to confirm and move to the minute setting.
- Repeat steps 3 and 4 for the minute setting.
- Press ALARM again to exit alarm setting mode.
Activating/Deactivating Alarm: While the alarm time is displayed, press the ALARM button repeatedly to toggle the alarm on/off. An alarm icon will appear on the screen when activated.
Snooze Function: When the alarm sounds, press the Light/Snooze button to activate the snooze function. The alarm will sound again after approximately 5 minutes.
6.3 Weather Forecast
The device displays a weather forecast based on changes in atmospheric pressure. The forecast icons include:
- Sunny: Clear skies expected.
- Variable Cloudiness: Mixed sun and clouds.
- Cloudy: Overcast conditions.
- Rain: Precipitation expected.
Note: The weather forecast is an estimation and may not always be 100% accurate. It is based on internal barometric pressure readings and is not connected to external weather services.
6.4 Viewing Multiple Outdoor Sensors
If you have connected multiple remote sensors, press the CH button on the main unit to cycle through the temperature and humidity readings from each sensor (Channel 1, Channel 2, Channel 3).
7. Maintenance
- Cleaning: Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: Replace batteries when the low battery indicator appears on the display. Ensure correct polarity.
- Storage: If storing the device for an extended period, remove all batteries to prevent leakage.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display on main unit. | Batteries are dead or incorrectly inserted. No AC power. | Check battery polarity, replace batteries, or connect to AC power. |
| Outdoor readings not displayed or inaccurate. | Remote sensor batteries are dead. Sensor out of range. Interference. Incorrect channel. | Replace sensor batteries. Move sensor closer to main unit. Avoid placing near electronic devices. Press and hold CH button to re-sync. Ensure sensor channel matches selected channel on main unit. |
| Alarm does not sound. | Alarm is not activated. Alarm volume is too low (if adjustable, though not specified here). | Ensure the alarm icon is displayed on the screen. Check alarm settings. |
| Weather forecast seems incorrect. | Forecast is based on local barometric pressure changes, not external data. | This is normal. The device provides an estimation based on internal readings. |
9. Specifications
| Feature | Detail |
|---|---|
| Product Type | Thermohygrometer with Wireless Sensor |
| Display Type | Color LCD with Backlight |
| Indoor Temperature Range | 0°C to +50°C (32°F to 122°F) |
| Outdoor Temperature Range | −40°C to +70°C (−40°F to 158°F) |
| Humidity Range (Indoor/Outdoor) | 20% to 95% RH |
| Temperature Units | °C / °F selectable |
| Wireless Frequency | 433.92 MHz |
| Wireless Range | Up to 80m (line-of-sight) |
| Number of Sensors Supported | Up to 3 (1 included) |
| Time Format | 12 / 24-hour selectable |
| Alarm Clock | Yes, with Snooze function |
| Power Source (Main Unit) | 3 x AAA batteries (not included) or USB cable (5V, 1000mA adapter not included) |
| Power Source (Remote Sensor) | 2 x AAA batteries (not included) |
| Body Material | Plastic |
| Dimensions (Main Unit) | 5.7 x 18.2 x 10.5 cm |
| Weight | 320 grams |
10. Warranty and Support
Information regarding the warranty period and terms is typically provided on the warranty card included in your package. For technical support, service, or inquiries about your Levenhuk Wezzer Teo TH40 Thermohygrometer, please refer to the contact information provided in your warranty documentation or visit the official Levenhuk website.
Please retain your proof of purchase for warranty claims.
