Never miss a humidity swing — ±1.0°F/±2% RH accuracy with instant app alerts over a 260ft range for bedrooms, living rooms, offices, greenhouses, and cellars.
3-Day Shipping guaranteed for all lower 48 states. Alaska, Hawaii, and US territories excepted.
Free shipping
3-year warranty after registration
30-day money-back guarantee
WHO IT'S BEST FOR
Best For:
For the homeowner who wants Bluetooth app monitoring at the lowest price: Monitor temp and humidity from 260ft away via the TempPro app. Custom alerts, 1-year data history, face icon comfort indicator. No registration required at $12.99.
For the plant lover or instrument owner who wants phone alerts when conditions drift: Set your own humidity and temperature thresholds. Get notified the moment conditions leave the safe range for your guitar room, humidor, nursery, or greenhouse.
For anyone who wants to monitor multiple rooms affordably: Buy a 2 or 3-pack and cover the bedroom, nursery, and basement all at once. Each one connects individually to the app, all visible without switching devices.
Not Ideal For:
Those who want a backlit display for low-light checking: The TP357 has no backlight. For checking readings in a dim room at night, the TP358 or TP359 have backlit displays.
Those who want more than 1 year of data storage: The TP357 stores 1 year of history. For 2 years of exportable data to track long-term trends, the TP350 or TP358 extend that storage.
FEATURES
Comfort Indicator: Intuitive face icons (representing Dry, Comfortable, and Wet) indicate the comfort level of current environmental conditions, helping you easily adjust your humidifier or dehumidifier for optimal comfort.
Enhanced Bluetooth Range: This indoor thermometer hygrometer is equipped with advanced Bluetooth technology that provides a stable, reliable range of up to 260 feet (80 meters) in open spaces to ensure total coverage for monitoring your home's temperature and humidity.
High Accuracy: This digital thermometer and hygrometer offers highly accurate readings for both temperature (±1°F/°C) and humidity (±2% RH), ensuring precise monitoring for your home environment.
Smart App with Alerts: Set custom temperature and humidity ranges using the TempPro Sensor and receive phone notifications if the levels exceed your parameters, allowing you to make adjustments quickly. Maintain your privacy with the TempPro App which does not require user registration.
Historical Data: This digital hygrometer thermometer features a 1-year data storage with an easy-to-use graph feature, allowing you to analyze past temperature and humidity trends.
Brand Note
ThermoPro is now TempPro — same trusted quality, same performance.(You may receive either branded packaging.)
SPECIFICATIONS
Temperature Range: -4.0 to 140.0℉(-20.0 to 60.0℃)
Temperature Accuracy:
±1.0℉(±0.5℃) from 32 to 140℉(0 to 60℃)
Humidity Range: 10%~99%
Humidity Accuracy:
- From 30% to 80%: ±2%
- Otherwise: ±3%
Sensor Type: NTC
Refresh Rate: 10 seconds
Transmission Range*: 260ft（80m）
Wireless Technology: Bluetooth 5.0
Display:
- LCD
- Length x Width inches (43 L x 31 W mm)
Backlight: No
Unit Size: Length x Width x Height inches (55.5 L x 54.0 W x 17.5 H mm)
Power: 1.5V (1 x AAA 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.
AS FEATURED IN
The Formula for a Well-Balanced Living Space
The Formula for a Well-Balanced Living Space
Smart App with Real-Time Alerts
The TempPro App prioritizes your privacy with a secure, no-registration signup, ensuring your personal information remains completely protected.
Expanded Bluetooth Reach: 260 ft / 80 m
Features advanced Bluetooth technology for a stable and reliable connection. Effortlessly monitor temperature and humidity levels throughout your living environment.
Comfort Indicator
Intuitive face icons (representing Dry, Comfortable, and Wet) indicate the comfort level of current environmental conditions, helping you easily adjust your humidifier or dehumidifier for optimal comfort.
Observe Trends, Perfect Your Space
Visualize hourly to yearly temperature and humidity changes, making it easy to balance your home comfort perfectly.
Observe Trends, Perfect Your Space
Visualize hourly to yearly temperature and humidity changes, making it easy to balance your home comfort perfectly.
The Ideal Thermometer for Any Space
Perfect for tracking temperatures in your Nursery, Incubator, Wine Cellar, or Greenhouse
Product Comparison
Compare features and find the perfect product for your needs
TempPro TP357 Bluetooth Indoor Hygrometer & Thermometer — 260ft Range, Instant Alerts
TP351 Bluetooth Indoor Hygrometer Thermometer
(-20.0 to 60.0℃)
(-20.0 to 60.0℃)
otherwise ±3%
otherwise ±3%
(55.4L x 53.8W x 17.5H mm)
(61.6L x 56.2W x 16H mm)
TempPro TP357 Bluetooth Indoor Hygrometer & Thermometer — 260ft Range, Instant Alerts
TP351 Bluetooth Indoor Hygrometer Thermometer
(-20.0 to 60.0℃)
(-20.0 to 60.0℃)
otherwise ±3%
otherwise ±3%
(55.4L x 53.8W x 17.5H mm)
(61.6L x 56.2W x 16H mm)
Recommended for You
