Infrared carbon dioxide detector CO2 detector indoor temperature and humidity air quality monitor automatic calibration

Model: gmt-l28a

Detection technology: infrared detection technology or semiconductor detection technology

Display mode: LCD digital display + LCD screen + backlight

Carbon dioxide measurement range: 400-5000ppm

Carbon dioxide measurement resolution: 1ppm

Temperature measurement range and accuracy: 0-50 degrees + / - 1 degrees

Humidity measurement range and accuracy: 0-99% RH + / - 5% RH

Size: 70*90*35cm

Input voltage: 5V

Sensor: NDIR infrared carbon dioxide sensor

Battery capacity: 1200mAh

Charging interface: type-C

Calibration technology: automatic calibration

Packing list:

1 carbon dioxide detector

Type one charging line

A multilingual instruction manual

Note: relationship between carbon dioxide concentration and human health

Coma or even death above 5000ppm

4000-5000ppm severe hypoxia, permanent brain injury

3000-4000ppm rapid heartbeat, extreme nausea

2000-3000ppm feeling dizzy and unable to concentrate

1000-2000ppm feeling muddy and sleepy

450-1000pm feel comfortable and breathe smoothly

350-450ppma fresh and comfortable air