CO2/Temp./RH Meter AZ-7755

CO2/Temp./RH Meter AZ-7755
FEATURES:
Low cost portable meter checking indoor air quality
Big LCD displays CO2 ,temp. & humidity simultaneously
Designed with NDIR (non-dispersive infrared) waveguide technology CO2 sensor
Manual calibration is recommended
Warning carbon dioxide level programmable
Backlight function for working in dark place
Long time drift compensation
Audible alarm (~80db)threshold setting
Max ,min, average functions included
PC output every 2 seconds for on line analysis
Hold function freezes current readings
Display 8 hrs TWA value (time-weighted average) or 15 minutes STEL value (short-term exposure limit)
Housing design surrounds with rails to help air ventilation for quick and accurate response
Easy to calibrate at fresh air around 380-420ppm
SPECIFICATIONS:
Measuring range:0~9999 ppm, (2001~9999 ppm out of scale range)
Temperature:-10~60 C (14~140 F)
Relative Humidity:0.1%~99.9%RH
DP(Dew point temp.):-20.0~59.9 C
WB(Wet bulb temp.):-5.0~59.9 C
Resolution:1ppm , 0.1 C/ F, 0.1%RH
Accuracy:+50ppm+5% of reading(0~2000ppm) Other ranges are not specified
Temperature:+0.6 C/+0.9 F
Relative Humidity:+5%RH (at 25 C , others)
Response time
Meter size (LxWxH,mm):205x70x56 200g