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Thermopro TP357 Bluetooth Digital Indoor Hygrometer Thermometer with App Alert

$10.99 $11.65

Availability: In stock

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  • Comfort Face Indicators】: Humidity meter features comfort face icons to indicate DRY/COMFORT/WET air conditions in an easy to understand format and allow you to adjust your humidifier or dehumidifier accordingly;
  • 260ft/80m Enhanced Bluetooth Range】: Humidity sensor contains an enhanced Bluetooth Technology to produce a stable, ensure you’ll always have full home coverage to monitor the temperature and humidity within your home;
  • Highly Accurate and Fast Refresh Rate】: Indoor temperature and humidity monitor is highly accurate for both temperature and humidity (±1 Fahrenheit/Celsius and ±2%), with a lightning quick refresh rate of 2 seconds;
  • Smart App with Alerts】: Set a temperature and humidity range via the ThermoPro Sensor and instantly receive a phone notification if the temp or humidity levels ever fall outside of your range;
  • Temperature Graph and 1 Year Data Storage】: Thermometer indoor outdoor displays an easy to use temperature graph with a maximum 1 year time period;
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    We offer free 3-5 day shipping for orders > $50, 2-Day shipping ($9.05 to $9.60), and 1-Day shipping ($17.00 to $18.50) to ensure you get your ThermoPro on time!

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    Superior Warranty

    Buy knowing our products are backed by our best in class 3 year warranty.


    If you're unhappy with your ThermoPro for any reason, contact us within 30 days and we'll issue a full refund!

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ThermoPro TP357

ThermoPro TP357 Bluetooth Digital Indoor Hygrometer Thermometer

ThermoPro Bluetooth hygrometer indoor allows you to monitor your home environment from a distance of 260ft away while receiving tons of useful data directly to your smartphone. Via the APP you can set the suitable temp and humidity range for your baby room, greenhouse, humidor, cellar and instantly receive notifications on your phone once the temp or humidity levels go beyond the set range. Humidistat features face icon indicators to ensures you’re always aware of changes in your environment.

  • Temperature range: -4˚F to 140˚F (-20˚C to 60˚C) , Accuracy: ±1.0˚F (±0.5˚C)
  • Humidity range: 10%-99%, Accuracy: ±2% RH
  • Refresh rate: 10 seconds
  • Comfort indicator: DRY, COMFORT, WET
  • Wireless Bluetooth range: 260ft/80m
  • Magnet-mountable and wall-mounted design
  • App Monitor and Notification
  • Max/Min records within one year
Thermopro logo

ThermoPro home temperature monitor and greenhouse supplies are rigorously optimized to provide the most accurate results possible while still providing a simplified user experience.


  • 1* Room Temperature Monitor
  • 1* 3A battery
  • 1* User Manual
ThermoPro TP357 Bluetooth Hygrometer Thermometer Applications
High Accuracy and Fast Response

High Accuracy and Fast Response

The room thermometer for home contains a smart temperature sensor that provides high accuracy of ±1°F for temperature and ±2% for humidity. The wall thermometer indoor refreshes every 10 seconds to always keep you updated about the latest air condition changes.

Easy to Use Temperature Graph

Easy to Use Temperature Graph with 1 Year Historic Data

Easy-to-use temperature graph provides you the option to analyze your home’s historic temp and humidity data to look for trends and patterns. Select between multiple time periods such as 24 hours, 1 week, and even up to 1 year!

260ft/80m Bluetooth Coverage

260ft/80m Bluetooth Coverage

Monitor your humidity and temperature on your phone via the ThermoPro Sensor APP up to 260ft away using strong, reliable Bluetooth technology.

Smart APP Phone Notifications

Smart APP Phone Notifications

When the temp or humidity levels go beyond your set ranges, you will immediately receive a notification from the Thermopro Sensor APP to ensures you react quickly to the changes. Making this a must-have for humidor, greenhouse, terrariums, garage or wine cellars, and etc.

Portable with Two Mounting Choices

Portable with Two Mounting Choices

Portable humidor hygrometer has two mounting options – Magnetic Back / Hanging Hole, place the garage thermometer anywhere you wish such as living room, baby room, kitchen, greenhouse, guitar room, office and cellar.

Face Icon Comfort Level Indicator

Face Icon Comfort Level Indicator

Temperature gauge features a crystal clear LCD screen that displays comfort level face icons, which allows you to be aware of the changes in your home with just a quick glance, and if you need to take actions such as to humidify or dehumidify.


TP357 Specification

Temperature Range -22.0 to 140.0℉(-30.0 to 60.0℃)
Temperature Tolerance ±0.5℉(±0.3℃) from 32 to 140℉(0 to 60℃)

otherwise ±0.9℉(±0.5℃)

Humidity Range 10%~99%
Humidity Tolerance ±2% form 30% to 80%,otherwise ±3%
Sensor Type NTC
Refresh Rate 10 seconds
Transmission Range* 260ft(80m)
Wireless Technology Bluetooth 5.0
Display LCD, 1 11⁄16  Length x  1 7⁄32 Width inches (43L x 31W mm)
Backlight N
Unit Size 2 3⁄16 Length x 2 1⁄8 Width x 11⁄16 Height inches

(55.5L x 54.0W x 17.5H mm)

Power 1.5V (1xAAA Battery)
*The stated transmission range is based on tests at an ambient temperature of 77°F or 25°C without any obstructions or electromagnetic interference. Your range can vary depending on the number of obstructions and electromagnetic in your environment.
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