RH401 EXTECH INSTRUMENTS, RH401 Datasheet
![DIGITAL PSYCHROMETER, 90%RH, ±3%](/photos/27/75/277544/4129685_sml.jpg)
RH401
Manufacturer Part Number
RH401
Description
DIGITAL PSYCHROMETER, 90%RH, ±3%
Manufacturer
EXTECH INSTRUMENTS
Datasheet
1.RH401-CAL.pdf
(1 pages)
Specifications of RH401
Humidity Range
10% To 90%
Accuracy %
3%
Resolution (°c)
0.1°C
External Height
230mm
External Width
57mm
External Depth
44mm
Accuracy
+/-3%RH
No. Of Batteries
4
Lead Free Status / RoHS Status
na
www.extech.com
Digital Psychrometer + InfraRed Thermometer
Ordering Information:
RH401 ..........................Digital Psychrometer + InfraRed Thermometer
RH405 ..........................Digital Psychrometer + InfraRed Thermometer Kit
RH401-CAL ..................33% and 75% RH calibration reference
407752 ........................RS-232 PC cable and software for RH401
Features:
•
•
•
•
•
•
•
•
•
Applications:
•
•
•
Triple display with backlighting
InfraRed Thermometer with
Precision humidity capacitance sensor is retractable for
protection during transportation and storage
Calculates T1 (IR Surface Temperature) - DP (Dew Point) differential
Programmable Auto power off and Low battery indication
Over-range/under-range alert indicator
Built-in RS-232 interface for capturing readings on a PC
RH401 complete with 4 AAA batteries and carrying case
Optional RH405 kit includes meter, 33% and 75%
calibration bottles, RS-232 cable, 4 AAA batteries and
carrying case
Monitor Wet Bulb, Dew Point, Relative Humidity and
Temperature in factories, clean rooms, offices, and greenhouses
Non-contact InfraRed surface temperature measurements in
hard to reach areas such as heating and air conditioning duct
Humdity monitoring in schools, offices and
manufacturing or storage areas
RH405 Digital Psychrometer + InfraRed
Thermometer Kit includes calibration
bottles, RS232 cable, and carrying case.
Plus IR for non-contact surface Temperature measurements
View Air temp+RH+surface temp
View Dew Point+RH+surface temp
View Wet Bulb+RH+surface temp
Built-in laser pointer
8:1 distance to target ratio
Adjustable Emissivity from 0.3 to 1.0
Humidity, Wet bulb, Dew Point and Air Temperature
Specifications subject to change without notice.
Copyright © 2007-2008 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.
Specifications:
Humidity
Temperature (internal)
Temperature (external)
Dew Point
Wet Bulb
Dimensions
Weight
Patented
Range
10 to 90%RH
-4 to 122°F (-20 to 50°C)
-328 to 2498°F (-200 to 1370°C) 0.1°
-90.4 to 122°F (-68.0 to 49.9°C)
-6.9 to 122°F (-21.6 to 49.9°C)
9 x 2.2 x 1.7" (230 x 57 x 44mm)
5.3oz (153g)
Max Resolution
0.1% RH
0.1°
Basic Accuracy
±3% RH
±1.8°F or ±1°C
±0.3% or ±1.8°F/±1°C
7/27/09 - R1