RH490 Datasheet, PDF (2/7 Pages) Extech Instruments Corporation. – Precision Hygro-Thermometer

Introduction
Congratulations on your purchase of the Extech RH490 Precision Hygro-
Thermometer. This device measures Humidity, Air Temperature, Dew Point
temperature, Wet Bulb temperature and Grains of Water Vapor Per Pound of Air.
Advanced features include Data Hold, Auto Power Off, and MAX/MIN reading. This
meter is shipped fully tested and calibrated and with proper use will provide years
of reliable service.
Warranty
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free
of defects in parts and workmanship for one year from date of shipment (a six
month limited warranty applies to sensors and cables). If it should become
necessary to return the instrument for service during or beyond the warranty
period, contact the Customer Service Department at [phone] ext. 210 for
authorization or visit our website www.extech.com for contact information. A
Return Authorization (RA) number must be issued before any product is returned
to Extech. The sender is responsible for shipping charges, freight, insurance and
proper packaging to prevent damage in transit. This warranty does not apply to
defects resulting from action of the user such as misuse, improper wiring,
operation outside of specification, improper maintenance or repair, or
unauthorized modification. Extech specifically disclaims any implied warranties
or merchantability or fitness for a specific purpose and will not be liable for any
direct, indirect, incidental or consequential damages. Extech's total liability is
limited to repair or replacement of the product. The warranty set forth above is
inclusive and no other warranty, whether written or oral, is expressed or implied.
Copyright © 2006 Extech Instruments Corporation
All rights reserved including the right of reproduction in whole or in part in any form.
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RH490 V2.0 12/06