Indoor/Outdoor Weather Station tfa dostmann Casa White LCD Battery — wireless 0.433 GHz, AA 1.5 V, 141×100×48 mm

tfa dostmann Casa White LCD is a compact indoor/outdoor weather station designed for home monitoring of room and external conditions. The unit displays indoor temperature and receives outdoor temperature and outdoor humidity data from a wireless transmitter operating at 0.433 GHz. It is battery powered (AA 1.5 V) and housed in a plastic case with dimensions of 141×100×48 mm. The station provides weather icons and air pressure-based trend information to indicate changing conditions and synchronises the time via the DCF77 atomic clock signal.

Advantages

The device combines a clear LCD display with wireless outdoor sensor transmission, offering separate measurement of indoor climate and outdoor conditions. Built-in features include frost alarm, display of maximum and minimum values and a backlight for improved readability. The compact plastic housing and battery power make the station easy to place in different rooms without wiring.

Suitable for

• Home monitoring of room temperature
• Observation of outdoor temperature and outdoor humidity near the house
• Small apartments, living rooms, kitchens and hallways
• Locations where a compact, battery-operated display is required

Key specifications

• Measured values: indoor temperature; outdoor temperature; outdoor humidity
• Wireless frequency for outdoor sensor: 0.433 GHz
• Power supply: AA batteries, 1.5 V
• Housing material: plastic
• Display type: LCD with backlight
• Time synchronisation: DCF77 atomic clock signal
• Additional functions: weather icons, air pressure trend, frost alarm, min/max memory
• Dimensions: 141 × 100 × 48 mm

How to use

Install AA 1.5 V batteries in the main unit and in the outdoor transmitter according to the polarity markings, then place the transmitter at the desired outdoor location within the wireless range. The station will automatically search for the transmitter signal on 0.433 GHz and display outdoor temperature and humidity when a stable connection is established. The internal sensors measure indoor temperature continuously while the DCF77 signal updates the displayed time. Use the device controls to view maximum and minimum values, enable or disable the backlight and set or acknowledge the frost alarm.

Recommendations

Place the outdoor transmitter in a shaded, well-ventilated position protected from direct rain and strong sunlight for representative temperature and humidity readings. Keep the main unit away from heat sources and drafts to ensure accurate indoor measurements. Replace batteries in both the station and transmitter promptly when low battery indicators appear to maintain reliable wireless transmission and time synchronisation.