TFA Dostmann 30.5039.01.03 Indoor Electronic Hygrometer Psychrometer Digital Black Rectangular Battery Powered

The TFA Dostmann indoor electronic hygrometer psychrometer digital black rectangular battery powered device is designed to monitor indoor humidity and temperature levels effectively. Featuring a digital rectangular display and powered by a CR2032 battery, this compact black instrument provides reliable microclimate measurements for home or office use, helping to maintain a comfortable and healthy indoor environment by accurately tracking atmospheric conditions.

Advantages

This digital hygrometer helps you maintain an optimal living environment by providing objective measurements of indoor humidity and temperature. It features a comfort-level zone indicator with a smiley face that clearly shows when conditions are ideal or when you need to adjust heating or ventilation. Its slim and compact design makes it nearly inconspicuous in any room, allowing for flexible placement while helping you save on heating costs and recognize the risk of mould due to high humidity.

Suitable for

• Monitoring indoor climate in living rooms and bedrooms
• Tracking humidity and temperature in kitchens and offices
• Recognizing the risk of mould caused by excessive indoor humidity
• Helping to optimize heating and ventilation to save energy

When it may not be suitable

This device is not designed for industrial environments, high-moisture outdoor areas, or extreme temperature chambers where professional-grade calibration is required. It is also unsuitable for direct outdoor exposure or immersion in water.

Key specifications

• Digital rectangular display
• Battery powered by a CR2032 battery
• Width: 12 mm
• Depth: 45 mm
• Height: 26 mm
• Includes comfort-level zone indicator
• Integrated fold-out stand

How to use

Insert the provided CR2032 battery into the device to power the digital display. Place or hang the hygrometer in the middle of a room for the most accurate ambient readings. Monitor the display and the comfort-level indicator regularly to determine if you need to ventilate or heat the room to achieve the recommended humidity range between 40 and 60 percent.

What to consider before purchase

• Ensure the compact size of 45 x 58 mm fits your intended display location
• Verify that the device will be placed away from direct windows, heat sources, or behind curtains
• Check that power is supplied via a standard CR2032 battery

Usage recommendations

For the most accurate assessment of your indoor climate, place or hang the hygrometer centrally within the room, avoiding direct placement near windows, heating units, or behind curtains.