1. Introduction
Thank you for purchasing the ThermoPro TP393 Bluetooth Hygrometer Indoor Thermometer. This device is designed to provide accurate and real-time monitoring of temperature and humidity in your indoor environment, with the added convenience of Bluetooth connectivity to your smartphone. This manual will guide you through the setup, operation, and maintenance of your new device, ensuring optimal performance and a comfortable living space.

Image: The ThermoPro TP393 device and its companion smartphone application.
2. Product Overview
Key Features
- 260-Foot Remote Range: Advanced Bluetooth 5.0 wireless technology for monitoring from a distance via the ThermoPro Sensor App.
- Digital Hygrometer with Clock and Day Display: Displays current temperature, humidity, time, and day of the week.
- High Accuracy and Fast Refresh: Built-in Swiss Sensirion sensor provides ±0.5°F for temperature and ±3%RH for humidity, with 10-second refresh intervals.
- Large Touchable Backlit Display: 4.18-inch LCD screen with clear digits and touch-activated backlight for easy reading in any light condition.
- Rechargeable, Long-Lasting Battery: Holds a charge for several months, eliminating frequent battery replacements.
- Instant App Alert and 1-Year Data Storage: ThermoPro Sensor App displays data graphs (24 hour/1 week/1 year) and provides alerts for preset temperature and humidity levels.

Image: Overview of the ThermoPro TP393's key features.

Image: The high-accuracy Swiss Sensirion sensor inside the device.
Package Contents
- 1 x ThermoPro TP393 Thermometer Body
- 1 x USB Charge Cable
Device Layout
The TP393 features a large, clear LCD display showing humidity percentage, temperature (°F/°C), time, and day of the week. A touch button at the bottom activates the backlight. The back of the device includes a magnetic mount for versatile placement.

Image: Activating the backlight via the touch button.

Image: Versatile placement options for the device.
3. Setup
Initial Charging
Your ThermoPro TP393 comes with a built-in rechargeable Lithium Ion battery. Before first use, it is recommended to fully charge the device using the provided USB cable. Connect the USB cable to the charging port on the device and to any standard USB power source (e.g., computer, mobile power bank, AC adapter, power strip).

Image: Charging the ThermoPro TP393 device.
App Download and Pairing
To unlock the full potential of your TP393, download the "ThermoPro Sensor" app from your smartphone's app store (available on iOS and Android). Once installed, open the app and follow the on-screen instructions to pair your device via Bluetooth. Ensure Bluetooth is enabled on your smartphone.

Image: Monitoring the device remotely via the ThermoPro Sensor App.
Video: An official ThermoPro video demonstrating the features of the TP393, including its clock and day display, and interaction with the smartphone app for monitoring and alerts.
4. Operating Instructions
Understanding the Display
The large LCD screen of the TP393 provides all essential information at a glance:
- Humidity: Displayed as a percentage (%).
- Temperature: Displayed in either Fahrenheit (°F) or Celsius (°C).
- Time: Current time, automatically synchronized with your phone settings via Bluetooth. Can be set to 12-hour or 24-hour format.
- Day of Week: Current day.
- Comfort Level Indicator: Icons or text indicating DRY, COMFORT, or WET conditions based on humidity levels.

Image: The TP393 functioning as a clock with environmental data.

Image: 12-hour or 24-hour time display options.
Comfort Level Indicator
The device provides a quick visual indicator of the humidity comfort level:
- DRY: 10% - 30% RH
- COMFORT: 31% - 60% RH
- WET: 61% - 99% RH

Image: Humidity comfort level ranges.
Using the ThermoPro Sensor App
The companion app offers enhanced monitoring and data analysis:
- Real-time Monitoring: View live temperature and humidity readings from your paired device.
- Data Graphs: Access historical data presented in clear graphs for 24 hours, 1 week, or 1 year, allowing you to track trends.
- Alert Settings: Set custom high and low temperature and humidity thresholds. Receive instant notifications on your smartphone if readings exceed these preset levels.
- Max/Min Records: The app also displays the maximum and minimum temperature and humidity recorded over time.

Image: Max/Min record feature in the app.
5. Maintenance
Cleaning
To clean your ThermoPro TP393, simply wipe it with a clean, damp cloth. Do not immerse the device in water or use harsh chemicals, as this may damage the electronics.
Battery Care
The device features a long-lasting rechargeable battery. To maximize battery life, avoid extreme temperatures and store the device in a cool, dry place when not in use for extended periods. Recharge the battery when the low power indicator appears on the display or in the app.
6. Troubleshooting
- No Display / Device Not Turning On:
Ensure the device is fully charged. Connect it to a USB power source using the provided cable and allow it to charge for at least 30 minutes before attempting to turn it on again. - Bluetooth Connectivity Issues:
a. Ensure Bluetooth is enabled on your smartphone.
b. Make sure the device is within the 260-foot range of your smartphone.
c. Close and reopen the ThermoPro Sensor app.
d. Restart your smartphone and the TP393 device.
e. If issues persist, try unpairing and re-pairing the device in the app's settings. - Inaccurate Temperature/Humidity Readings:
a. Ensure the device is placed in a location away from direct sunlight, heat sources (e.g., vents, appliances), or extreme drafts, which can affect readings.
b. Allow the device to stabilize for at least 30 minutes after placement or significant environmental changes.
c. If you suspect a significant discrepancy, compare readings with another calibrated thermometer/hygrometer in the same environment. - Backlight Not Working:
Ensure the device is charged. The backlight is activated by touching the button at the bottom of the display. If it still doesn't work, contact customer support.
7. Specifications
| Specification | Value |
|---|---|
| Brand | ThermoPro |
| Special Feature | High Accuracy |
| Color | White, Black |
| Included Components | Thermometer body, charge cable |
| Outer Material | Plastic |
| Display Type | Digital |
| Connectivity Technology | Bluetooth |
| Product Care Instructions | Wipe Clean |
| Power Source | Battery Powered |
| Model Name | TP393 |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Item Length | 5.25 Inches |
| Upper Temperature Rating | 140 Degrees Fahrenheit |
| Response Time | 10000 Milliseconds |
| Reusability | Reusable |
| Resolution | 0.5 degrees fahrenheit |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 9.1 ounces |
8. Warranty and Support
ThermoPro products are designed for reliability and performance. For warranty information or technical support, please refer to the official ThermoPro website or contact their customer service directly. Keep your purchase receipt for warranty claims.
Contact Information:
Please visit the official ThermoPro website for the most up-to-date contact details and support resources.





