The TH-303 thermohygrometer is a high-quality device for measuring air temperature and humidity. The measured temperature can be displayed on a Celsius or Fahrenheit scale. An additional function that facilitates monitoring is the temperature and humidity trend indicator. The thermohygrometer has the ability to store the lowest and highest temperature and humidity values. The thermohygrometer is ideal for use in family homes, offices, industrial plants, new buildings, etc.

The TH-303 thermohygrometer is a high-quality device for measuring air temperature and humidity. The measured temperature can be displayed on a Celsius or Fahrenheit scale. An additional function that facilitates monitoring is the temperature and humidity trend indicator. The thermohygrometer has the ability to store the lowest and highest temperature and humidity values. The thermohygrometer is ideal for use in family homes, offices, industrial plants, new buildings, etc.

FEATURES:

- Display of internal temperature

- Temperature display units C/F (adjustable)

- Storage of temperature and humidity values MAX/MIN

- 2 time display modes: 12h/24h

- Time signal function

- Alarm/alarm function

- Calendar function

- Date and time display, automatic switching between date and time display every 5 seconds

TECHNICAL DATA:

- Measured temperature range: -10 ~ +50 C/-4 ~ +122 F

- Temperature reading resolution: 0.1 C

- Temperature reading accuracy: ±1 C

- Humidity measurement range: 20% ~ 90% RH

- Humidity resolution: 20% 20%: 1%

- Humidity reading accuracy: 1%: ± 5% RH

- Temperature measurement period: 20 s.

- Time and date display (automatic switching)

- Time display mode: 12H or 24H

- Alarm/clock function: YES

- Product dimensions: 97x94x20 mm

- Power supply: 1.5V AAA battery (included)

Same summary

The BLOW TH303 weather station with thermohygrometer is suitable for anyone who wants to easily monitor the temperature and humidity in their home or surroundings. Since it is battery-operated, it is reliable even where there is no possibility of connecting to the mains, which makes it particularly convenient for use in the basement, pantry or even in the garden. The device does not contain a barometer, so it is slightly less suitable for those who would like to monitor air pressure or weather changes in addition to basic data.

Recommendation source: Enaa guides and team experience.

User view

The BLOW TH303 Weather Station is most often chosen by users who want to quickly and without complicated settings check the temperature and humidity in their home, on the balcony or in the garage. Due to its easy operation, this model is popular both among young people who are furnishing their first home, as well as with families who need reliable information for the comfort of the child's room or monitoring the storage conditions of food.

Many users also appreciate the wider range and accessibility of Blow brand products, as they allow them to complement their home furnishings in a uniform style and with confidence in proven quality.

Why buy at Enaa

At Enaa, you can compare weather stations based on key features, making it easier to choose based on your actual needs. In addition, you can find a wide range of different models from the same category in one place and easy access to additional information so you can make a confident decision.

Answers to frequently asked questions

Is it possible to use the BLOW TH303 weather station outdoors?

Yes, thanks to the battery power supply, the station is suitable for use indoors or temporarily outdoors, where it is protected from direct weather influences such as rain or snow.

What does it mean that a weather station doesn't have a barometer?

This means that the station only measures temperature and humidity, but not air pressure, which is used to more accurately predict weather changes.

What is the advantage of battery power for this station?

Battery power allows the station to be placed anywhere, regardless of access to an electrical outlet, which is especially convenient in the basement, pantry or garden.

Is the data display large and clear enough for everyday use?

The display is organized and designed to allow quick reading of basic data, making it easier to use even for the elderly or children in the household.

How often should the batteries be replaced under normal use?

With normal use, the batteries last for several months, but the exact duration depends on the quality of the batteries and the frequency of use of the station.

Description updated: April 2026