Humidity accuracy10% to 90% rh, -3% to 3% < 10% & > 90% rh, -5% to +5%
Auto power offYes
Low-battery indicatorYes
Calibration certificate includedNo
Temperature accuracy-1.5° to +1.5°
Relative humidity range0% to 100%
Power sourceBattery
Max. relative humidity measured100%
Maximum carbon dioxide measured30000 ppm
Alert typeSound
Maximum carbon monoxide measuredNot Applicable
Max. pressure measuredNot Applicable
Minimum dew point measuredNot Applicable
Minimum oxygen measuredNot Applicable
Gases detectedCarbon Dioxide
Temp. range-4°F to +140°F
Battery voltage9V
Datalogging capabilitiesYes
Digital display screen typeLCD With Backlight
Min./max./average readingsYes
No. of records stored32000
Selectable sampling rateYes
Testing functionsRelative Humidity, Temperature
Humidity measuring range0% rh to 100% rh
Operating humidity0% to 90%
Operating temp.32°F to 122°F
Storage temp.-4°F to +140°F
Manufacturer warranty length1 yr.
Minimum temperature measured-4°F
Analyzer typeGas Analyzers For Carbon Dioxide
Carbon dioxide accuracy0 ppm to 5000 ppm, +/-(75 ppm +3% rdg.), 5001 ppm to 30000 ppm, +/-(150ppm +5% rdg.)
Carbon dioxide sensor typeNon Dispersive Infrared
Dimensions11 1/5" x 2 3/5" x 1 1/2"
IncludesCarrying Case, USB Cable
Minimum carbon dioxide measured0 ppm
Relative humidity accuracy+/-3% From 10 to 90% Rh, +/-5% From 10 to 90% Rh
AlarmLow, High
Carbon dioxide measuring ranges0 ppm to 30000 ppm
Ppm accuracy+/-3% Of Reading, +/-75 ppm (0 ppm to 5, 000 ppm), +/-5% Of Reading, +/-150 ppm (5001 ppm to 30000 ppm)
Humidity resolution0.1% RH
Internal memoryYes, 32000 Datapoints
Software os compatabilityWindows 7, 8, 10, 11
Storage humidity range10% to 75%
Backlit displayYes
Batteries includedYes
Calibration certificateNo
Calibration certificate typeAvailable Separately
Data holdYes
Display typeLCD
Kick standYes
Pc connectivityUsb
Real-time clock and date stampYes
Standard logoce.png
Maximum temperature measured140°F
Minimum relative humidity measured0%
Temp. resolution0.1°F
Battery life10 hrs.
Battery run time10 hrs.
Carbon dioxide resolution1 ppm
Carbon dioxide sampling rate2 sec.
Carbon dioxide short term exposure limit (stel)15 min.
Carbon dioxide time weighted average (twa)8 hrs.
Carbon dioxide warm-up time20 sec.
Max. operating altitude6561 ft.
Temperature range-4 to 140°F (-20 to 60°C)
ColorBlue
CertificationsCE
Package includesAir Quality Meter, USB Cable, Hard Carrying Case, Batteries
DescriptionIndoor Air Quality Meter
Manufacturers part numberR9905
Batteries9V
BrandREED Instruments
Package quantity1
TypeAir Quality Meter