Techno Line WL 1020 Manuel D'utilisation page 22

4- Air quality display (star icons) 11 - Thermo-hygro sensor
5- Indoor temperature
6- Indoor humidity
7- "LICHT" button
Main functions

Quartz clock

12/24 hour time display

Alarm with 5-minute snooze function

Display of indoor temperature and humidity

MIN/MAX value memory for temperature and humidity

Air quality display as 5 star icon rating

Low battery indicator

White backlight

Changes to yellow: ventilation recommended
12 - TVOC sensor
13 - Battery compartment
cover
14 - Power adapter connection
EN2