1. Introduction
Thank you for purchasing the ThermoPro TP210B Wireless Refrigerator/Freezer Thermometer. This device is designed to help you monitor the temperature of your refrigerator and freezer wirelessly, ensuring your food is stored at optimal temperatures. With a strong 500ft/150m wireless range and customizable alarms, you can easily keep track of temperature fluctuations.
2. Package Contents
- 1 x Receiver Unit
- 1 x Transmitter Unit
- 2 x AAA Batteries (for Receiver)
- 1 x USB Charging Cable (for Transmitter)
- 1 x User Manual
3. Key Features
- Extended Wireless Range: Up to 500ft/150m using advanced RF technology for stable connection.
- Pre-Paired for Immediate Use: No complex setup required; units are pre-paired from the factory.
- Wide Measurement Range: Accurate readings within ±0.9°F across -40°F to 158°F (-40°C to 70°C).
- Smart Temperature Alerts: Customizable high/low temperature limits with audio-visual alarms.
- Easy-to-Read Backlit Display: Shows fridge and freezer readings, Max/Min records, and low-battery status.
- Considerate Power Design: Receiver uses AAA batteries, transmitter features a rechargeable lithium battery.
- Flexible Placement Options: Receiver has hook, stand, or magnet; transmitter has clip or stand.
4. Setup
4.1. Receiver Battery Installation
- Open the battery compartment on the back of the receiver unit.
- Insert 2 AAA batteries, ensuring correct polarity (+/-).
- Close the battery compartment securely.
Note: The receiver requires 2 AAA batteries, which are included in the package.
4.2. Transmitter Charging
- Locate the charging port on the transmitter unit.
- Connect the provided USB charging cable to the transmitter and a standard USB power source (e.g., wall adapter, computer USB port).
- Allow the transmitter to charge fully before first use. The charging indicator will change when fully charged.
Note: The transmitter uses a rechargeable lithium battery designed for low-temperature environments.
4.3. Initial Pairing (Pre-Paired)
The ThermoPro TP210B units are pre-paired at the factory. Simply power on both the receiver and transmitter, and they should automatically connect. If connection issues occur, refer to the Troubleshooting section.
4.4. Placement
Image: ThermoPro TP210B Receiver and Transmitter. The receiver displays temperatures, while the transmitter sends data from inside the appliance.
Receiver Placement:
- Use the integrated stand to place it on a countertop.
- Utilize the magnetic back to attach it to a metallic surface.
- Hang it using the hook on the back.
- Place the receiver in a location where you can easily view the display and hear alarms, within the 500ft/150m range of the transmitter.
Transmitter Placement:
- Place the transmitter inside your refrigerator or freezer.
- Use the integrated clip to attach it to a shelf or rack.
- Ensure the transmitter is not obstructed by large items that could block the wireless signal.
5. Operating Instructions
5.1. Power On/Off
- Press the POWER button on both the receiver and transmitter to turn them on or off.
5.2. Reading Temperatures
- The receiver's backlit LCD display will show the current temperature from the transmitter.
- The display typically shows both the current temperature and the all-time Max/Min records.
5.3. Setting Temperature Alarms
The TP210B allows you to set custom high and low temperature limits for alerts.
- Press the ALERT button on the receiver. The high limit will flash.
- Use the UP or DOWN buttons to adjust the high temperature limit.
- Press ALERT again to confirm the high limit and move to the low limit setting.
- Use the UP or DOWN buttons to adjust the low temperature limit.
- Press ALERT a third time to confirm the low limit and exit alarm setting mode.
When the temperature exceeds the set range, the receiver will emit an audio-visual alarm.
5.4. Max/Min Temperature Records
- The receiver automatically records the maximum and minimum temperatures detected since the last reset.
- Press the MAX/MIN button to cycle through current, maximum, and minimum temperature readings.
- To reset the Max/Min records, press and hold the MAX/MIN button for 3 seconds while viewing the Max/Min display.
5.5. Backlight
- The receiver features a bright backlit display for easy reading in low-light conditions.
- The backlight will activate automatically when a button is pressed and will turn off after a short period of inactivity to conserve battery.
6. Maintenance
6.1. Cleaning
- Wipe the units with a damp cloth. Do not immerse in water.
- Do not use abrasive cleaners or solvents.
6.2. Battery Replacement (Receiver)
- When the low battery indicator appears on the receiver display, replace the 2 AAA batteries.
- Ensure proper polarity when inserting new batteries.
6.3. Transmitter Charging
- Recharge the transmitter's lithium battery when the low battery indicator appears.
- Use the provided USB charging cable.
6.4. Storage
- If storing the device for an extended period, remove the AAA batteries from the receiver.
- Store in a dry place away from extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No temperature reading / "--" displayed | Transmitter not powered on, out of range, or low battery. |
|
| Inaccurate temperature readings | Sensor obstruction, extreme environmental conditions, or sensor malfunction. |
|
| Alarms not sounding | Alarm limits not set correctly or alarm function disabled. |
|
| Transmitter battery drains quickly | Operating in extremely low temperatures or frequent signal transmission. |
|
8. Specifications
- Temperature Range: -40°F to 158°F (-40°C to 70°C)
- Temperature Accuracy: ±0.9°F (±0.5°C)
- Wireless Range: Up to 500ft (150m) in open air
- Transmission Frequency: 433 MHz
- Receiver Power: 2 x AAA batteries (included)
- Transmitter Power: Rechargeable Lithium battery (included, with USB charging cable)
- Display: Backlit LCD
- Dimensions (Receiver): Approximately 4.33 inches (length)
- Weight (Item): Approximately 11.2 ounces
9. Warranty & 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 directly.
Official Website: www.thermopro.com
Customer Support: Refer to the contact information provided on the ThermoPro website or product packaging.





