Langkou Air Quality Monitor Indoor, Carbon Dioxide Detector Portable Carbon Dioxide Monitor, CO2/Temperature/Humidity Meter, NDIR Sensor, Confined Space Air Monitor Tester Alarm, for Room/Car/School
- ...en 800-2000ppm, and it will alert you when the detected CO2 concentration reaches the alarm threshold you set. Press and hold the ""down"" button to turn the buzzer on or off..
- 【SIX BRIGHTNESS ADJUSTABLE】- Free to adjust the screen brightness of the instrument in daytime/nighttime according to your preference, Monitor Carbon Dioxide levels clearly in front of your eyes anytime, anywhere..
- 【WHAT YOU GET】 - Air quality monitor indoor, charging cable, user manual, Langkou 12-months warranty & 24/7 customer support access via email and phone..