ThermoPro TP50 Digital Hygrometer Indoor Thermometer Instruction Manual

1. Overview

The ThermoPro TP50 Digital Hygrometer is designed to provide accurate and reliable measurements of indoor temperature and humidity. This device helps you monitor the air conditions in your home, ensuring a comfortable and healthy environment. It features a clear display, high accuracy, and records of high/low readings, making it a versatile tool for various indoor settings.

Figure 1: The ThermoPro TP50 Digital Hygrometer, shown in a pack of three, displays current humidity, temperature, and high/low records.

2. Package Contents

• 1 x ThermoPro TP50 Digital Hygrometer
• 1 x AAA Battery

3. Product Features

• Air Comfort Indicator: This humidity meter features a humidity level icon (DRY/COMFORT/WET) to indicate current air conditions, allowing for quick assessment of your home's environment.


Figure 2: The Air Comfort Indicator uses a smiley face icon to quickly communicate humidity levels: Dry (<30% RH), Comfort (30-60% RH & 68-79°F), and Wet (>60% RH).

• High Accuracy & Quick Refresh Rate: The indoor thermometer provides high accuracy of +/-2–3%RH and +/-1°F. Data measurements are updated every 10 seconds for real-time environmental monitoring.


Figure 3: The device features a 10-second refresh rate, providing rapid updates on temperature and humidity changes in the environment.

• High & Low Records: Displays the highest and lowest temperature and humidity levels recorded since the last reset, enabling comparison of environmental data.
• Versatile Use: Suitable for various applications including a refrigerator thermometer, freezer thermometer, reptile thermometer, soil thermometer, humidor hygrometer, and cigar hygrometer.
• Practical Design: Features a tabletop stand and a magnetic back for flexible placement options. Includes a °F/°C selector.


Figure 4: The TP50 features a large, easy-to-read LCD display with magnified numbers for clear visibility from a distance.



Figure 5: The practical design includes a magnetic back for attachment to metal surfaces and a foldaway stand for tabletop use.

4. Setup

4.1 Battery Installation

The ThermoPro TP50 operates on one AAA battery. To install or replace the battery:

1. Locate the battery compartment on the back of the unit.
2. Open the battery compartment cover.
3. Insert one AAA battery, ensuring the correct polarity (+/-).
4. Close the battery compartment cover securely.

Figure 6: The back of the unit houses the battery compartment for one AAA battery, a button to switch between Fahrenheit and Celsius, and a clear button to reset high/low records.

5. Operating Instructions

5.1 °F/°C Selection

To switch between Fahrenheit (°F) and Celsius (°C), press the °F/°C button located on the back of the unit.

5.2 High/Low Records

The device automatically records the highest and lowest temperature and humidity readings. To reset these records, remove and reinsert the battery.

5.3 Comfort Indicator

The smiley face icon on the display indicates the current comfort level based on humidity and temperature:

• DRY: Humidity below 30% RH.
• COMFORT: Humidity between 30% and 60% RH, and temperature between 68°F and 79°F.
• WET: Humidity above 60% RH.

6. Placement Guidelines

The ThermoPro TP50 offers flexible placement options:

• Tabletop: Utilize the integrated foldaway stand to place the unit on any flat surface, such as a desk, shelf, or bedside table.


Figure 7: The ThermoPro TP50 is designed for indoor use, suitable for placement on tables or shelves to monitor room conditions.

• Magnetic Mount: The strong magnetic back allows for easy attachment to metal surfaces like refrigerators or metal shelves.

7. Maintenance

• Clean the unit with a soft, damp cloth. Do not immerse in water.
• Avoid using abrasive cleaners or solvents.
• Remove the battery if the unit will not be used for an extended period.

8. Troubleshooting

• No Display/Faint Display: Check if the battery is installed correctly with the right polarity. Replace the battery if necessary.
• Inaccurate Readings: Ensure the device is placed in a location free from direct sunlight, drafts, or heat sources. Allow sufficient time (at least 30 minutes) for the readings to stabilize after placement or significant environmental changes.
• High/Low Records Not Resetting: To clear the high/low records, remove the battery for a few seconds and then reinsert it.

9. Specifications

10. Warranty & Support

ThermoPro provides a warranty for this product. Please refer to the product packaging or the official ThermoPro website for detailed warranty information and registration. For customer service and technical support, please contact ThermoPro directly. Contact information may be found on the product packaging or the official ThermoPro website.