5in1 CO2 Messgerät Luftqualitätsdetektor Lufttester Kohlendioxidmelder Tester
0 ~ 0.6 mg/m³ (HCHO formaldehyde). Large backlit LCD display, you can clearly see the amount of electricity, CO2, TVOC, HCHO, temperature and humidity. Sensor: NDIR infrared carbon dioxide sensor / semiconductor sensor.