["WL1020 improved features, significantly nicer casing, clear display","Quartz clock, indoor temperature display, humidity display","Air quality sensor for monitoring air quality","Ventilation recommendation: if the air quality is poor, you will receive a ventilation recommendation (ventilation recommendation works like a traffic light system: red backlight = poor air, please ventilate)","Alarm clock with snooze function and battery indicator","Touch sensor for backlight","manual calibration possible, factory setting recommended however","Tip: for a more accurate measurement of air quality, more power is required, therefore air quality is permanently displayed only when operating with a power supply, in battery mode only on button press after a certain measuring time","Temperature measuring range: -9.9 °C to 50°C","Humidity measuring range: 10% to 95%"]
