EXTECH INSTRUMENTS CORPORATION
285 Bear Hill Road, Waltham, MA 02451-1064, U.S.A.
Phone: 781-890-7440 • FAX 781-890-7864
ISO 9001:2000 CERTIFIED
07/20/06 - R4
Features:
• Less than 30 second RH response time
• Dual backlit display
• Simultaneous display of:
Humidity/Temperature
Humidity/Dew Point
Humidity/Wet Bulb
• Slim design with rubberized sides for better grip and
for one hand operation
• Data Hold and Min/Max functions
• Auto power off with disable and low battery indicator
• Complete with carrying case and 9V battery
Precision Psychrometer
Highest 2% RH accuracy
Ordering Information:
RH390 ..............Precision Psychrometer
RH390-NIST ....Precision Psychrometer with NIST certificate
Specifications
Humidity 0 to 100%RH
Temperature (internal) -4 to 199°F (-20 to 100°C)
Basic Accuracy ±2%RH, ±1.8°F/1°C
Max. Resolution 0.1%RH, 0.1°F/°C
Dewpoint -22 to 199°F (-30 to 100°C)
Wet Bulb 32 to 176 °F (0 to 80°C)
Dimensions 7.8x1.7x1.3" (200x45x33mm)
Weight 7oz (200g)
“Make mine an Extech!™”
www.extech.com
Copyright © 2006 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.
Product
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