Sensor typeCapacitance
Humidity resolution0.1%
Humidity accuracy-3% to +3%
Response time60 sec.
Temp. resolution0.1°F
Auto shutoffYes
Relative humidity range0% to 100%
Temp. accuracy-1.8°F to +1.8°F
Dew point range-90.4°F to +122°F
BatteryAAA
Data storageYes
Data holdYes
Data loggingNo
Display screen typeLCD
Includes batteriesYes
With calibration cert.No
Size7" x 1.9" x 1"
Humidity range10% to 90%
Ambient temperature range-4°F to +122°F, -20°C to +50°C (Indoor), -4°F to +158°F, -20°C to +70°C (Outdoor)
Battery type(2) AAA
DataloggingWithout Data Logging
Wet bulb globe temperature range-6.9°F to 122°F
Ambient temperature accuracy-1.8°F to +1.8°F
Maximum dew pointMax Of 122°F
Operating temperature range-4°F to +122°F
Ip/nema ratingNot Rated
Meter typeDew Point And Wet Bulb Humidity Meters With Onboard Main Probe
Probe designOnboard
Properties measuredAmbient Temperature, Dew Point, Relative Humidity, Wet Bulb Temperature
StandardsCe Certified
Max. wbgt122°F
Overall depth1"
Overall height7"
Overall width1.9"
Temperature resolution0.1°
Battery run time80 hrs.
Manufacturer warranty length2 yrs.
ApplicationField Applications
Depth1"
Accuracy %3%
External depth24.7mm
External width48.4mm
External height178.5mm
Resolution (°c)0.1°C
Unspsc code41112302
MeasuresRelative Humidity; Dew Point
Temperature range122.0 F; 122.0; 122.0 C
Minimum dew point (f)-90.4
Maximum dew point (f)122
Minimum humidity0
Maximum temperature122.0 F; 122.0; 122.0 C
Resolution (degrees)0.1 F; 0.1 C
FeaturesData Hold Freeze Current Reading on Display; Auto Power Off to Save Battery Life; Max/Min Readings
Battery sizeAAA
Number of batteries2
BrandExtech
Package typeClamshell
Warranty2 Years
IncludesRH300 complete with 2 AAA batteries
TypePsychrometer
Display typeDigital
Upc code793950443002
Supplier:Extech
Part no:RH300
Unit of measure:Per Each
Rohs:Yes
Coo:CN
Supplier standard pack1