1)Special design for room CO2 indicator and alarm
Suitable for classrooms, offices and other public places
2)Real-time detecting and display CO2 level during 0ppm to 20,000ppm CO2 range
Also detecting room temperature from 5 to 65˚C
3)Optional real-time humidity from 5% RH to 95% RH
4)NDIR CO2 sensor technology of infrared self diffusion, 15 years lifetime
5)Self calibration algorithm makes it in using without calibration amending
6)Specially provide the altitude calibration
The three measured CO2 ranges for 3 LED indicator lights setup by end users
7)3 LEDs brightness adjustable
8)Optional 1 x dry contact output to control a ventilation device
9)Optional 1 x 0 to 10V DC output
10)Optional the buzzer alert for CO2 level
11)Optional RS485 interface to connect to a PC or another system