1. Introduction
The ThermoPro TP358 is a Bluetooth-enabled indoor thermometer and hygrometer designed to monitor ambient temperature and humidity levels. It features a clear backlit display, a built-in clock, and connectivity to a mobile application for data tracking and alerts. This manual provides instructions for setting up, operating, and maintaining your device.

Image 1.1: ThermoPro TP358 device displaying temperature, humidity, and time, alongside a smartphone showing the companion app's data graphs.
2. Package Contents
- 1 x ThermoPro TP358 Bluetooth Hygrometer
- 2 x AAA Batteries
- 1 x User Manual
3. Device Components

Image 3.1: Detailed view of the ThermoPro TP358 display, indicating the clock, date, low battery indicator, comfort level, humidity trend arrow, temperature trend arrow, and backlight activation button.
- LCD Display: Shows temperature, humidity, comfort level, time, and date.
- Bluetooth Indicator: Flashes when pairing, solid when connected.
- Comfort Level Indicator: Displays DRY (10-30% RH), COMFORT (31-60% RH), or WET (61-99% RH).
- Temperature/Humidity Trend Arrows: Indicate rising, stable, or falling trends.
- Backlight Button: Activates the display backlight.
- Battery Compartment: Located on the back for AAA batteries.
- Integrated Stand: For tabletop placement.
- Magnetic Back: For attachment to metallic surfaces.
4. Setup
4.1 Battery Installation
- Open the battery compartment cover on the back of the device.
- Insert the two AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment cover. The device will power on automatically.
4.2 App Download and Bluetooth Pairing
- Download the "ThermoPro Sensor" app from the App Store (iOS) or Google Play Store (Android).
- Enable Bluetooth on your smartphone.
- Open the ThermoPro Sensor app. The app will automatically search for your TP358 device.
- Once detected, select your device in the app to establish a connection. The Bluetooth indicator on the TP358 will become solid when connected.

Image 4.1: Illustration of the ThermoPro TP358 connecting via Bluetooth to a smartphone, showing the app interface with multiple sensor readings.
5. Operating Instructions
5.1 Reading the Display
The large LCD display shows current temperature, humidity, comfort level, and the current time and date. The refresh rate for temperature and humidity is approximately 10 seconds.

Image 5.1: Close-up of the ThermoPro TP358 display highlighting the clock and date features.
5.2 Backlight Activation
Press the light bulb icon button at the bottom of the device to activate the backlight for easier reading in low-light conditions. The backlight will remain on for a short period.

Image 5.2: A hand pressing the backlight button on the ThermoPro TP358, illustrating the illuminated display for easy reading.
5.3 Using the ThermoPro Sensor App
- Real-time Monitoring: View current temperature and humidity on your smartphone within the 260ft Bluetooth range.
- Data Graphs: Analyze historical data trends (hour/day/week/month/year) to understand environmental patterns. The app stores up to 2 years of data.
- Alerts: Set custom high and low temperature/humidity thresholds. Receive notifications on your phone if conditions exceed these preset levels.
- Data Export: Export up to 2 years of stored data in a CSV format for further analysis.

Image 5.3: Screenshot of the ThermoPro app displaying temperature and humidity data graphs over time.

Image 5.4: Screenshot of the ThermoPro app demonstrating how to set temperature and humidity alerts.
5.4 Placement Options
The TP358 offers versatile placement options:
- Table Stand: Use the integrated foldable stand for placement on desks, shelves, or countertops.
- Wall Mount: Utilize the hanging hole on the back to mount the device on a wall.
- Magnetic Attachment: The magnetic back allows for easy attachment to refrigerators or other metallic surfaces.

Image 5.5: Various placement methods for the ThermoPro TP358, including wall mount, built-in magnets, and table stand.
6. Maintenance
- Clean the device with a soft, damp cloth. Do not use abrasive cleaners or immerse in water.
- Replace batteries when the low battery indicator appears on the display.
- Store the device in a dry environment when not in use for extended periods.
7. Troubleshooting
- No display: Ensure batteries are installed correctly and are not depleted. Replace if necessary.
- Bluetooth connection issues:
- Ensure Bluetooth is enabled on your smartphone.
- Make sure the device is within the 260ft Bluetooth range.
- Restart the ThermoPro Sensor app and try reconnecting.
- Remove and re-insert batteries in the TP358 to reset it.
- Inaccurate readings:
- Ensure the device is placed away from direct sunlight, heat sources, or vents that could affect readings.
- Allow the device to stabilize for at least 30 minutes after placement in a new environment.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | TP358 |
| Temperature Accuracy | ±0.9°F (±0.5°C) |
| Humidity Accuracy | ±2% RH |
| Refresh Rate | 10 seconds |
| Bluetooth Range | Up to 260 feet (80 meters) |
| Power Source | 2 x AAA Batteries (included) |
| Product Dimensions | 2.62 x 0.89 x 3.6 inches |
| Item Weight | 2.93 ounces |

Image 8.1: Illustration detailing the high performance sensor and accuracy specifications of the ThermoPro TP358.
9. Warranty and Support
ThermoPro provides a warranty for this product against defects in materials and workmanship. For detailed warranty information, product registration, or technical support, please visit the official ThermoPro website or contact their customer service. Contact information can typically be found on the ThermoPro website or within the product packaging.







