Real time detect CO2 concentration,Day/Night mode

1 Real-time detecting and display CO2 level during 0ppm to 20,000ppm CO2 range; Also detecting room temperature from 5 to 45C

2 Optional real-time humidity from 5%RH to 95%RH

3 NDIR CO2 sensor technology of infrared self diffusion, 15 years lifetime

4 Self Calibration Algorithm makes it in using without calibration amending 

5 The three measured CO2 ranges for 3-LED indicator lights selectable by end users

6 LED brightness adjustment

7 Optional 1X dry contact output to control a ventilation device

8 Easy preset CO2 level for buzzer alert (optional) 

9 Optional RS485 interface to connect to a PC or another system (optional)

This model can be used in greenhouse ,food storage etc agriculture applications. Besides this type, we also have many other CO2 controllers,CO controllers, Ozone/VOCs controllers . If you have anything interesting, please don't hesitate to contact me.