Item No.: C99AP135
.Gas Tested: CO2 In The Air.  
.Measuring Range: 0~2000ppm.  
.Resolution: 1ppm.  
.Minimum Reading: 1ppm.  
.Accuracy: ±50ppm or ±3%.  
.Response Time: < 30 Seconds.  
.Sensor Type: NDIR CO2 Gas Sensor.  
.Buzzer Alarm Setup.  
.Low Battery Indication.  
.Operating Environment: 0~50℃,32~122℉;10~90%RH.  
.Storage Environment: -10~80℃,-14~176℉;10~75%RH.  
.LCD Backlight.  
.Power:5V DC Power Adapter.