1) Wireless PM2.5 sensor measuring air quality
2) Indoor temperature and humidity (°C or °F)
3) 6 grades air quality levels indicator: Good, Moderate, Mild, Unhealthy, Severe and Hazardous
4) PM 2.5 current and max value for 1h/24h/since last reset.
5) Every 60 second the unit will receive wireless PM 2.5 sensor.
6) Temperature units °C/°F selectable
7) Battery power condition indicator
8) Rechargeable batteries and solar panel as backup power included
9) Wall hanging or free standing
1) Indoor temperature range:-9.9 ~ +60°C(14.18°F to +140°F)
2) Temperature accuracy: +/-1.0°C
3) PM 2.5 measure range: 0~999ug/m3
Power requirements : 2 x "AAA" Ni-MH Rechargeable Batteries (included)
Battery life: Minimum 12months