RH305 EXTECH | Alldatasheet
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Specifications subject to change without notice. Copyright © 2007-2008 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in pa rt in any form.www.extech.com 7/1/08 - R1 External Probe Temperature measurements for differential Calculates T1-T2 differential (Air Temperature minus External Probe Temperature) Digital Psychrometer Ordering Information: Features:
- Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or Probe Temperature
- Wet bulb measurements without slinging
- Calculates T1-T2 differential (Air Temperature minus External Probe Temperature) using optional probe (TP890) and T2-Dew Point
- Unique sensor cap design twists to closed position for protection during storage
- Switchable °F/°C temperature units with 0.1° resolution
- Data Hold freezes current reading on display
- Max/Min readings
- Auto power off to save battery life
- RH300 complete with 2 AAA batteries
- Optional external temperature probe (TP890)
- Optional kit RH305 includes RH300, temperature probe, 33% and 75% calibration bottles, and carrying case Unique sensor cap design Twist to open or close sensor for storage. RH305 Digital Psychrometer Kit includes RH300, 33% and 75% calibration bottles, temperature probe, and carrying case. RH300-CAL Optional calibration salt bottles 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°F or ±0.6°C Temperature (external) -4 to 158°F (-20 to 70°C) 0.1° ±1°F or ±0.6°C Dew Point -90.4 to 122°F (-68.0 to 49.9°C) Wet Bulb -6.9 to 122°F (-21.6 to 49.9°C) Dimensions 7 x 1.9 x 1" (178.5 x 48.4 x 24.7mm) Weight 3.3oz (95g)