Extech Instruments RH300 User Manual

RH300-en-GB_v2.0 10/18
8
Specifications
Range and Resolution
Accuracy
Humidity
0.0 to 100.0% RH
±3% RH (10 to 90%) @ 23
o
C
Temperature (internal sensor)
-20 to 50
o
C (-4.0 to
122.0
o
F)
±1
o
C (±1.8
o
F)
Temperature (optional external
probe TP890)
-20 to 70
o
C (-4.0 to
158.0
o
F)
±1
o
C (±1.8
o
F)
Display Triple-reading LCD
Sensor Types Relative Humidity: Precision capacitance sensor
Temperature (internal): Thermistor
Optional TP890 Temperature probe: Thermistor
Response Time 60 seconds typical
Dew Point range -68 to 50
o
C (-90.4 to 122.0
o
F) (calculated from RH and air
temperature measurements)
Wet Bulb range -21.6 to 50
o
C (-6.88 to 122.0
o
F) (calculated from RH and air
temperature measurements)
Operating Conditions -20 to 50
o
C (-4 to 122
o
F); < 99% RH non-condensing
Storage Conditions -40 to 85
o
C (-40 to 185
o
F); <99% RH non-condensing
Power Supply 2 x 1.5V ‘AAA’ batteries
Battery Life Approx. 80 hours
Dimensions / Weight 178.5 x 48.8 x 25.2mm (7.0 x 1.9 x 1.0”); 140g (4.9 oz.)
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Extech Instruments RH300 Specifications

General

Brand	Extech Instruments
Model	RH300
Category	Measuring Instruments
Language	English