Specifications; Meter Description - Extech Instruments RH300 User Manual

Specifications

Function
Humidity
Temperature (internal)
Temperature (external)
Display
Sensor Type
Response Time
Dew Point
Wet Bulb
Operating Conditions
Storage Conditions
Power Supply
Battery Life
Dimensions / Weight

Meter Description

1. Humidity Sensor & Air Temperature Sensor
2. Triple LCD Display
3. ON/OFF button
4. T1-T2/Dew Point/T1 button
5. °F/°C select
6. MIN/MAX/RESET button
7. T2-DP/Wet Bulb/T2 button
8. HOLD button
9. T2 Probe Jack
Note: The battery compartment is located
on the rear of the instrument
Range and Resolution Accuracy
0.0 to 100.0% RH ±3% RH (10 to 90%) @ 23
o o
-4.0 to 122.0 F (-20 to 50 C) ±1.8
o o
-4.0 to 158.0 F (-20 to 70 C) ±1.8
Triple LCD
Humidity: Precision capacitance sensor
Temperature: Thermistor
60 seconds typical
o o
-90.4 to 122.0 F (-68 to 50 C) (calculated from RH and Air
temperature measurements)
o o
-6.88 to 122.0 F (-21.6 to 50 C) (calculated from RH and Air
temperature measurements)
o o
-4 to 122 F (-20 to 50 C); < 99% RH non-condensing
o o
-40 to 185 F (-40 to 85 C); <99% RH non-condensing
2 x 1.5V 'AAA' batteries
Approx. 80 hours
7 x 1.9 x 1" (178.5 x 48.8 x 25.2mm); 4.9 oz. (140g)
2
o
C
o o
F (±1 C)
o o
F (±1 C)
1
9
2
3 8
ON/OFF HOLD
/WB
T/DP
7
4
T1 T2
o o
C/ F RESET
5 6
MX/MN
RH300 V1.4 11/04