Measuring device HAMA Safe, CO2, 186434

Air quality measuring device: CO, humidity and ambient temperature.
Suitable for indoor spaces (living room, bedroom, children's room and office)
Air quality display (CO2): GOOD (green = good air quality), NORMAL (yellow = normal air quality) and BAD (red = poor air quality)
Additional alarm sound at red warning level from 1001 to 2000 ppm, which becomes more intense as quality deteriorates
Stores the minimum and maximum measured values of CO2 concentration, temperature and ambient humidity
The temperature indicator can be switched between degrees Celsius / Fahrenheit
Display of ambient humidity in percentage
Rechargeable battery: allows the device to operate for up to 3.5 hours without power
4-bar battery status indicator

CO2 measurement range: 400 - 5000 ppm
CO2 measurement error: +/- 50 ppm
Sensor type: NDIR (Infra Rot)
Humidity measurement range: 20% to 95%
Humidity measurement error: ±8%
Humidity measurement step: 1%
Temperature measurement error: ±5℃
Temperature range: 0°C to 50°C
Temperature measurement step: 0.1°
Screen type: LED
Display: CO2 in ppm/Humidity in %/Max/Min CO2/State of Charge/Temperature in °C

USB cable length: 100 cm
Charging time: 240 Min.
Max. battery operating time: 210 Min.
Consumption: 1000 mA
Power supply: 5V (Micro USB)