* Easy manual calibration on CO2 and humidity (with AZ salt bottle)
* Dual display 2 parameters simultaneously: CO2, temperature
* Audible carbon dioxide level warning alarm
* Big LCD display with high resolution
* Back light for working in dark area
* Battery and adaptor power supply
* PC connect via USB interface
Specification of 77535 AZ CO2 Meter:
Model:77535
CO2 Range:0~9999 ppm (5001~9999 ppm out of scale range)
CO2 Resolution:1 ppm
CO2 Accuracy:±30 ppm ±5% of reading (0~5000 ppm), other range are not specified
CO2 Response Time:＜30 Seconds (90% step change)
CO2 Warm-up Time:30 Seconds
Air Temperature Range:-10~60℃, 14~140℉
Air Temperature Resolution:0.1℃, 0.1℉
Air Temperature Accuracy:±0.6℃, ±0.9℉
Air Temperature Response Time:＜2 mins (90% step change)
Humidity Range:0.1~99.9% RH
Humidity Resolution:0.1% RH
Humidity Accuracy:±3%RH (at 25℃, 10~90%RH); others ±5%RH
Humidity Response Time:＜10 mins (90% step change)
LCD Size:44(L) * 26(W) mm
Meter Size:205(L) * 70(W) * 56(H) mm
Operating Temperature:0~50℃
Operating RH%:0~95% RH (avoid condensation)
Storage Temperature:-20~50℃
Storage RH%:0~90% RH (avoid condensation)
Power Supply:AA * 4 PCS
Battery life:＞ 24 hours (Alkaline Battery)
Weight:~200g
Standard Package:Meter, Manual, Hard Carry Case