Specifications:
1.Large LCE Display: 3.5” (8.9cm) LCD display with backlight
2.Logger Mode: Key stat/stop， Immediately， Schedule， Real-time & Roll-over
3.Carbon Dioxide Range: 0~9999(out of scale)
4.Accuracy: ±50ppm ±5%rdg (0~2000)
5.Response Time: 10sec
6.Temperature Range: -10.0~70.0C (14~158F)
7.Resolution: 0.1C/F
8.Accuracy: ±0.6C/±0.9F (0~50C/32~122F)， others±1.2C
9.Humidity Range: 0.1~99.9%
10.Resolution: 0.1%
11.Accuracy: ±3% (10~90%)
12.Logging Memory: 40000
13.Operating Condition: 0~50C， 0~95%RH
14.Storage Condition: -20~60C， 0~99%RH
15.Sensor Life: 15 years in normal conm
16.Environments with ABC on
17.Storage Temp: -40~70C (-40~158F)
18.Power Supply: 1A Output 9V AC Adapter or 2 pairs of 1.5v AA battery (not included)
Features:
1.Supper large LCD simultaneously display and log Carbon Dioxide Level， Temperature， Relative Humidity， Calendar (Y/M/D) and Time (Clock)
2.12700 data logging memory
3.Warning CARBON DIOXIDE LEVEL!
4.Stable NDIR sensor for Carbon Dioxide concentration
5.NDIR (Non-Dispersive Infrared) WAVEGUIDE TECHNOLOGY WITH ABC (Automatic back-ground Calibration)
6.High and low threshold setting
7.Back-light function
8.Recall Max and Min reading
9.Long time drift compensation
10.Comes with power adapter

Package Included:
1X Carbon Dioxide Meter
1X USB Cable
1X Charge Adapter (AC 100~240V 50/60Hz)
1X Small CD
1X English User Manual