Electronic environment thermometer TFA-Dostmann 30.5054.01 Indoor Digital Black White

The TFA-Dostmann 30.5054.01 Electronic environment thermometer is a compact indoor thermo-hygrometer with a high-contrast e-ink display that shows temperature and humidity clearly and glare-free. The device displays values in an easy-to-read black-on-white or inverted white-on-black layout, stores minimum and maximum readings, and includes a clock with date or weekday display. It is powered by a CR2032 battery and has a slim, portable design (75 × 13 × 75 mm).

Advantages

The e-ink display offers paper-like readability with high contrast and no glare; two display modes (black on white or inverted) increase legibility in different lighting. The thermo-hygrometer records minimum and maximum values for quick review and provides a comfort indicator (smiling face) when temperature and humidity are within optimal ranges. Multiple mounting options — fold-out stand, adhesive wall mount, nail hanging or rear magnet — allow flexible placement around the home. The device measures temperature in °C (also supports °F) within a practical indoor range and is lightweight for easy repositioning.

Suitable for

• Monitoring room climate in living rooms and bedrooms
• Checking humidity and temperature near plants or instrument storage
• Placement in nurseries and home offices for comfort control
• Use in kitchens or basements where compact, wall- or magnet-mounted sensing is useful

Key specifications

• Brand: tfa dostmann; Model: 30.5054.01
• Display: e-ink, high-contrast, invertible (black on white / white on black)
• Measured values: temperature and humidity; comfort indicator (smile)
• Temperature range: -9.9 to 50 °C (14.2 to 122 °F)
• Power supply: CR2032 battery
• Dimensions: 75 × 13 × 75 mm; Weight: 0.06 kg
• Body colours: white and black

How to use

Place the thermo-hygrometer on a flat surface using the fold-out stand, attach it to a wall with the supplied adhesive mount or hang it on a nail, or fix it to metal surfaces using the rear magnet. The display shows current temperature and humidity; press the button to view stored minimum and maximum values. Select the preferred display mode (standard or inverted) as needed and set the clock to show date or weekday.

Recommendations

Position the device away from direct heat sources, radiators or windows to obtain representative indoor temperature and humidity readings. Replace the CR2032 battery promptly when display dimming or incorrect readings appear.