Extech 445815 Data Sheet
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.
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3/13/08 - R1
NIST Calibrateable and Programmable Alarms
Warning of High or Low Humidity Conditions
Hygro-Thermometer Humidity Alert w/Dew Point
Ordering Information:
445815 ........................Humidity Alert II Hygro-Thermometer with Dew Point
445815-NIST................445815 with NIST Certificate
445815-NISTL..............Optional Limited NIST
RH300-CAL ..................Optional 33% and 75% RH calibration standards
RH300-C33 ..................33% RH calibration reference
RH300-C75 ..................75% RH calibration reference
Features:
• Large, easy-to-read triple LCD displays % Relative Humidity,
Temperature and Dew Point
• %RH audible and visual alarms, with adjustable set points,
alert when humidity exceeds set limit
• Probe clips onto meter or extends on 18" (457mm) cable
• Max/Min with Reset function
• Rear calibration adjustment pot for Humidity and Temperature
(available with NIST certification and optional Calibration
Standards)
• Complete with built-in stand, wall mount bracket, remote
sensor and 2 AAA batteries; Optional calibration salt bottles
Model 445580-C
RH300-CAL Optional calibration salt bottles
Specifications
Humidity 10 to 99%
Temperature 14 to 140°F (-10 to 60°C)
Basic Accuracy ±4%RH; ±1.8°F/1°C
Dimensions 4.3 x 3.9 x 0.78" (109 x 99 x 20mm)
Weight 6oz (169g)
Applications:
• In summertime, identifies and
warns when conditions for mold
growth exist
• In wintertime, identifies and warns
when low humidity conditions for
static electricity exist
• Remote probe allows for
measurements behind walls
or in difficult to access locations
• Air temperature and dew point
temperature indicate where
condensation may occur
• Monitor conditions in laboratories,
storage areas and other controlled
environment settings
• Ideal solution when traceable ISO
calibrations are required by
operating standards
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