Specifications - Extech Instruments RH401 User Manual

RS-232 PC Communications Interface
The meter is equipped with an RS-232 PC interface jack (3.5mm phono) for connection to a PC.
The cable to connect the meter to the PC is included in the optional 407752 data acquisition kit. The
kit includes Windows
display real-time measurements in a series of selectable formats. For more information or specific
operating instructions, refer to the User Guide included with the 407752 kit or contact Extech
Instruments.

Specifications

Function
Humidity
Temperature (Air)
Temperature (InfraRed)
(@25ºC ±5ºC)
Display
Sensor Type
Dew Point
Wet Bulb
IR Emissivity
IR Spot/Distance Ratio
IR Response Time
Operating Conditions
Storage Conditions
Power Supply
Battery Life
Dimensions / Weight
nd Quality Products Online at:
TM
compatible software that allows the user to store readings in a text file and
Range and Resolution
0.0 to 100.0% RH
-4.0 to 122.0
o
-4 to 842 F (-20 to 450
o
-40 to -4 F, 842 to 932
o
-40 to -20
Triple LCD with backlight
Humidity: Capacitance sensor; Temperature (air): Thermistor
o
-90.4 to 122.0 F (-68 to 50
temperature measurements)
o
-6.9 to 122.0 F (-21.6 to 50
temperature measurements)
Adjustable from 0.3 to 0.99
8:1
0.5 seconds
o
-4 to 122 F (-20 to 50
o
-40 to 185 F (-40 to 85
4 x 1.5V 'AAA' batteries or AC adaptor
approx. 150 hours (laser inactive); 30 hours (laser active)
6.8x2.7x1.9" (175x70x50mm); 4.9 oz. (140g)
GlobalTestSupply
www.
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F (-20 to 50 C)
o
C)
o
F
o
C, 450 to 500 C
o
C) (calculated from humidity and
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C) (calculated from humidity and
o
C); < 99% RH non-condensing
o
C); <99% RH non-condensing
7
.com
Accuracy
±3% RH (10 to 90%)
o o
±1.8 F (±1 C)
o
±3% reading or ±3 C/6
whichever is greater
o
±4% reading or ±4 C/8
whichever is greater
RH401-en-GB_ V1.7 1/17
sales@GlobalTestSupply.co
o
F
o
F