Description

1.Special design for room CO2 indicator and alarm 2.Suitable for classrooms, offices and other public places 3.Real-time detecting and display CO2 level during 0ppm to *0,**0ppm CO2 range 4.Also detecting room temperature from 5 to *5C 5.Optional real-time humidity from 5% RH to *5% RH 6.NDIR CO2 sensor technology of infrared self diffusion, *5 years lifetime 7.Self calibration algorithm makes it in using without calibration amending 8.Specially provide the altitude calibration 9.The three measured CO2 ranges for 3 LED indicator lights setup by end users *0.3 LEDs brightness adjustable *1.Optional 1 x dry contact output to control a ventilation device *2.Optional 1 x 0 to *0V DC output *3.Optional the buzzer alert for CO2 level *4.Optional RS**5 interface to connect to a PC or another system