Digital weather station TFA 35.1087 — indoor temp 0–50 °C, outdoor humidity 20–99%, AAA battery

TFA 35.1087 is a compact digital weather station designed for home indoor climate monitoring. It displays indoor temperature within the range 0–50 °C (32–122 °F) and outdoor relative humidity from 20% to 99%. The device combines climate readings with a clock and calendar, and provides a simple visual summary of recent temperature trends and comfort level information in a small, battery-powered unit measuring 80 × 20 × 135 mm.

Advantages

The instrument provides simultaneous indication of indoor temperature and humidity along with a comfort level indicator to help assess room climate quickly. A max/min memory and a 12-hour bar-graph of temperature changes allow retrospective checks of recent conditions. Additional functions such as a weather symbol derived from humidity changes, a clock with calendar, alarm and snooze, and backlight enhance everyday usability. Its compact size and option to hang or stand make it adaptable to different rooms, while AAA battery operation enables placement without nearby mains power.

Suitable for

• Monitoring living room, bedroom or nursery climate
• Supporting humidifier or dehumidifier management
• Quick checks of indoor conditions in home offices or workshops
• Use in locations where a compact, battery-powered display is needed

Key specifications

• Indoor temperature measurement range: 0 to 50 °C (32 to 122 °F)
• Outdoor humidity measurement range: 20% to 99% RH
• Comfort level indicator for indoor climate assessment
• Max/min memory for recorded temperature and humidity values
• 12-hour bar graph showing temperature trend
• Weather symbol based on humidity change
• Clock with calendar, alarm and snooze function
• Backlight for display readability in low light
• Mounting options: hanging or freestanding
• Power: 2 × 1.5 V AAA batteries (not included)
• Dimensions: 80 × 20 × 135 mm; Weight: 157 g

How to use

Install two AAA batteries and set the clock and date following the user interface prompts. Place the unit on a flat surface or hang it on a wall at a representative indoor location away from direct heat sources, windows and drafts for accurate indoor temperature readings. Use the display to view current indoor temperature and outdoor humidity values, consult the comfort indicator to assess room conditions, and check the 12-hour bar graph or max/min function to review recent changes. Use the alarm and snooze functions as needed.

Usage recommendations

For reliable indoor measurements, position the weather station at breathing height in the room (approximately 1–1.5 m) and avoid placing it near radiators, air vents or direct sunlight. Replace batteries promptly when low to maintain display and logging functions. Use the comfort indicator together with humidity readings to decide on humidification or ventilation actions.