Introduction
The ThermoPro TP358 is an advanced Bluetooth thermometer and hygrometer designed to accurately monitor room temperature and humidity. Featuring a built-in clock, smart sensor capabilities, and a backlit display, it provides real-time environmental data. With extended Bluetooth range and data storage export functionality, the TP358 allows for convenient monitoring and analysis of indoor conditions via its dedicated mobile application.

Image: The ThermoPro TP358 device alongside its companion mobile application, showing real-time temperature and humidity readings.
What's in the Box
Upon opening the package, please ensure all the following items are present:
- 1 x Bluetooth Hygrometer (ThermoPro TP358)
- 2 x AAA Batteries
- 1 x User Manual
Product Features
The ThermoPro TP358 is equipped with several key features designed for optimal performance and user convenience:
First-Rate Accuracy
This hygrometer utilizes a professional humidity sensor to achieve high accuracy, with readings up to +/-0.9°F for temperature and +/-2% RH for humidity. A rapid 10-second refresh rate ensures you are always updated on environmental changes.

Image: Visual representation of the TP358's high accuracy and fast refresh rate, highlighting its internal sensor technology.
Extended 260-Ft Bluetooth Coverage
The TP358 features Bluetooth 5.0 SIG certification, providing a reliable connection with an extended range of up to 260 feet. This allows you to monitor your home's temperature and humidity from your smartphone, even from a distance.

Image: A family using the ThermoPro app to monitor the device from a distance, demonstrating the 260-foot Bluetooth range.
Smart App Notifications
Receive instant alerts on your ThermoPro Sensor app when temperature or humidity conditions exceed your preset levels. This feature is ideal for monitoring specific areas like bedrooms or baby rooms, ensuring optimal comfort and safety. The app prioritizes user privacy by not registering personal information.

Image: A smartphone displaying the ThermoPro app's alert settings for temperature and humidity, along with an example notification.
Dynamic Graphs and Data Storage Export
The app provides dynamic graphs to visualize temperature and humidity trends over various periods (hour/day/week/month/year). It also includes a Heat Index feature to understand the perceived temperature. The device stores up to 20 days of data, and you can export data from the past two years for detailed analysis.

Image: A visual guide illustrating the process of data export from the TP358 to a smartphone and then to a computer for long-term storage and analysis.
Clock and Air Comfort Level Display
The TP358 features a clear 3-inch backlit LCD screen that displays the current time, day of the week, comfort levels (Dry, Comfort, Wet), and trend arrows for temperature and humidity. This provides comprehensive information at a glance.

Image: Detailed view of the TP358's display, highlighting the clock, date, comfort level indicator, and trend arrows for temperature and humidity.

Image: An infographic explaining the different air comfort levels (Dry, Comfortable, Wet) indicated by the device, along with their corresponding humidity ranges.
Backlight Activation
Easily activate the backlight with a touch for clear visibility in low-light conditions. The large digits ensure easy reading of the display.

Image: A hand activating the backlight on the TP358, demonstrating its enhanced readability in various lighting conditions.
Setup Guide
1. Battery Installation
- Locate the battery compartment on the back of the ThermoPro TP358 device.
- Open the battery compartment cover.
- Insert the two (2) AAA batteries, ensuring correct polarity (+ and -).
- Close the battery compartment cover securely. The device display should power on.
2. App Download and Pairing
- Download the "ThermoPro Sensor" app from your smartphone's app store (available for iOS and Android).
- Enable Bluetooth on your smartphone.
- Open the ThermoPro Sensor app. The app will automatically search for and connect to your TP358 device.
- Once connected, the device's data will appear in the app. You can rename the sensor within the app for easy identification if you have multiple devices.
3. Device Placement
The TP358 offers versatile placement options:
- Table Stand: Use the integrated kickstand to place the device on any flat surface.
- Wall Mount: Utilize the hanging hole on the back to mount it on a wall.
- Built-in Magnets: Attach the device to metallic surfaces like refrigerators using its strong magnets.

Image: Various placement options for the ThermoPro TP358, including wall mounting, magnetic attachment, and tabletop use.
Operation
1. Reading the Display
The large LCD display shows current humidity, temperature, comfort level (Dry/Comfort/Wet), time, and date. Trend arrows indicate whether temperature and humidity are rising, falling, or remaining stable.
2. Using the Mobile Application
The ThermoPro Sensor app provides enhanced functionality:
- Real-time Monitoring: View current temperature and humidity from anywhere within the Bluetooth range.
- Historical Data: Access graphs showing data trends over hours, days, weeks, months, or years.
- Alert Settings: Set custom high and low temperature/humidity thresholds to receive notifications when conditions fall outside your desired range.
- Data Export: Export historical data for detailed analysis on a computer.

Image: The ThermoPro app displaying clear data graphs for temperature and humidity trends, with options for different timeframes.
Maintenance
Cleaning the Device
To maintain the accuracy and longevity of your TP358, clean it regularly:
- Wipe the device with a soft, damp cloth.
- Do not use abrasive cleaners or immerse the device in water.
- Keep the sensor area clean and free from dust or debris.
Battery Replacement
When the low battery indicator appears on the display or in the app, replace the AAA batteries promptly to ensure continuous operation and accurate readings. Follow the battery installation steps outlined in the Setup Guide.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No display/Device not turning on | Batteries are dead or incorrectly installed. | Replace batteries with new AAA batteries, ensuring correct polarity. |
| Cannot connect to app via Bluetooth | Bluetooth is off on phone; device is out of range; app issue. | Ensure phone Bluetooth is on. Move closer to the device. Restart the app and/or phone. Reinstall app if necessary. |
| Inaccurate readings | Sensor obstructed; device placed near heat/cold source; low battery. | Ensure sensor is clear. Relocate device away from direct sunlight, vents, or extreme temperatures. Replace batteries. |
| App not showing historical data | Device not continuously connected; app data corruption. | Ensure stable Bluetooth connection. Clear app cache or reinstall the app (note: this may delete local data). |
For further assistance, please refer to the official user manual PDF available online or contact ThermoPro customer support.
Specifications
| Feature | Detail |
|---|---|
| Model Number | TP358 |
| Brand | ThermoPro |
| Product Dimensions | 2.62 x 0.89 x 3.6 inches (0.89"W x 3.6"H) |
| Item Weight | 2.93 Ounces |
| Batteries | 2 AAA batteries (included) |
| Temperature Accuracy | +/-0.9°F |
| Humidity Accuracy | +/-2% RH |
| Refresh Rate | 10 seconds |
| Bluetooth Range | Up to 260 feet |
| Data Storage | 20 days on device, 2 years via app export |
| Display | 3-inch Backlit LCD |
| Color | Orange |
Warranty & Support
ThermoPro products typically come with a manufacturer's warranty. Please refer to the warranty information provided in your product packaging or visit the official ThermoPro website for detailed warranty terms and conditions.
For technical support, troubleshooting assistance, or any inquiries regarding your ThermoPro TP358, please visit the official ThermoPro support page or contact their customer service directly. Contact information can usually be found on the ThermoPro website or in the included user manual.
Official User Manual (PDF): Download Here





