Digital Psychrometer + InfraRed Thermometer Humidity, Wet bulb, Dew Point and Air Temperature Plus IR for non-contact surface Temperature measurements Features: • Triple display with backlighting View Air temp+RH+surface temp View Dew Point+RH+surface temp View Wet Bulb+RH+surface temp • InfraRed Thermometer with Built-in laser pointer 8:1 distance to target ratio Adjustable Emissivity from 0.3 to 1.0 Patented • 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 Applications: • 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. Specifications: Humidity Temperature (internal) Temperature (external) Dew Point Wet Bulb Dimensions Weight Range 10 to 90%RH -4 to 122°F (-20 to 50°C) -328 to 2498°F (-200 to 1370°C) -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° 0.1° Basic Accuracy ±3% RH ±1.8°F or ±1°C ±0.3% or ±1.8°F/±1°C 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 www.extech.com Specifications subject to change without notice. 7/27/09 - R1 Copyright © 2007-2008 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.