Extech Instruments RH300-CAL Humidity Calibration Kit Datasheet

Extech Instruments RH300-CAL Humidity Calibration Kit Datasheet
PRODUCT DATASHEET
RH300
Digital Psychrometer
Compact meter is well-suited for field applications.
Unique sensor cap closes for protection during storage.
Simultaneously displays relative humidity, air temperature
and dew point or wet bulb. Calculates T1-T2 differential
(air temperature minus external probe temperature) using
optional probe (TP890), and T2 minus dew point. Other
features include Data Hold, Auto Power Off, and MAX/MIN
reading.
Features
Simultaneous display of %RH, Temperature and Dew
•
Data Hold freezes current reading on display
point or Wet Bulb or Probe Temperature
•
Max/Min readings
•
Wet bulb measurements without slinging
•
Auto power off to save battery life
•
Calculates T1-T2 differential (Air Temperature minus
•
Optional external temperature probe (TP890)
External Probe Temperature) using optional probe
•
Complete with 2 AAA batteries
•
(TP890) and T2-Dew Point
•
Unique sensor cap design twists to closed position for
protection during storage
Specifications
Range
Max Resolution
Basic Accuracy
Humidity
10 to 90%RH
0.1%RH
±3%RH
Temperature (internal)
-4 to 122°F (-20 to 50°C)
0.1°
±1.8°F or ±1°C
Temperature (external)
-4 to 158°F (-20 to 70°C)
0.1°
±1.8°F or ±1°C
Dew Point
-90.4 to 122°F (-68.0 to 49.9°C)
0.1°
Wet Bulb
-6.9 to 122°F (-21.6 to 49.9°C)
0.1°
Dimensions/ Weight
7 x 1.9 x 1" (178.5 x 48.4 x 24.7mm)/ 3.3oz (95g)
TP890
RH300-CAL
Ordering
RH300 N .......... Digital Psychrometer
RH300-CAL........ 33% and 75% RH calibration reference
TP890 ............... Thermistor Temperature Probe
N Indicates products that are available with optional calibration tr0aceable to NIST. Order with -NIST after part number.
Specifications subject to change wi thout notice. Copyright © 2007-2019 FLIR Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form.
Rev. 6/17/19
RH300 UPC Code: 793950443002
www.extech.com
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