Electronic environment thermometer tfa dostmann 30.1030 — indoor/outdoor, °C, battery LR44, 40×16×90 mm, white

Electronic environment thermometer tfa dostmann 30.1030 is a compact indoor/outdoor digital thermometer that displays ambient temperature in °C. The small white plastic housing (40×16×90 mm) houses a clear digital display and a simple mounting system. Powered by a single LR44 1.5 V battery, the device is suitable for rooms, balconies, windows and sheltered outdoor locations where a weather‑resistant, easy‑to‑read temperature indicator is required.

Advantages

The thermometer combines a slim, lightweight design with both indoor and outdoor use capability, allowing convenient reading from inside when mounted on an exterior window pane. It records and shows daily maximum and minimum temperatures with automatic daily reset, and its weather‑resistant plastic housing and supplied adhesive pad make mounting and removal straightforward for cleaning or battery replacement. The simple digital display and compact footprint allow unobtrusive placement on walls, window frames or flat surfaces.

Suitable for

• Measuring room temperature in living spaces, kitchens or utility rooms
• Monitoring outdoor temperature from indoors when used as a window thermometer
• Small greenhouses, balconies or sheltered outdoor areas
• Temporary or portable temperature checks where a compact display is needed

Key specifications

• Measurement unit: degrees Celsius (°C)
• Temperature measurement range: 0 to 40 °C
• Display: digital
• Power supply: single LR44 battery (1.5 V)
• Housing material: plastic, weather‑resistant
• Dimensions: 40 × 16 × 90 mm
• Placement: wall or window mounting with adhesive pad

How to use

Install one LR44 battery according to the polarity markings, attach the supplied self‑adhesive holder to the chosen mounting surface (window pane, wall or frame) and hang the thermometer onto the holder. For outdoor readings from indoors, mount the holder on the outside of the window and hang the device facing inwards. The thermometer automatically updates the current temperature and records daily maximum and minimum values with an automatic reset every 24 hours. Remove the device easily for window cleaning or battery replacement.

Usage recommendations

Place the thermometer in a sheltered location if used outdoors to avoid direct exposure to rain and direct sunlight for more accurate ambient temperature readings. Replace the LR44 battery when the display becomes dim or values stop updating correctly. Clean the housing and display with a soft, dry cloth; avoid strong solvents or abrasive cleaners.