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 Patented Built-in laser pointer 8:1 distance to target ratio Adjustable Emissivity from 0.3 to 1.0 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 Specifications: Range Max Resolution Basic Accuracy Humidity 10 to 90%RH 0.1% RH 3% RH Temperature (internal) -4 to 122F (-20 to 50C) 0.1 1.8F or 1C Temperature (external) -328 to 2498F (-200 to 1370C) 0.1 0.3% or 1.8F/1C Dew Point -90.4 to 122F (-68.0 to 49.9C) RH405 Digital Psychrometer + InfraRed Wet Bulb -6.9 to 122F (-21.6 to 49.9C) Thermometer Kit includes calibration Dimensions 9 x 2.2 x 1.7 (230 x 57 x 44mm) bottles, RS232 cable, and carrying case. Weight 5.3oz (153g) 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 Specifications subject to change without notice. 7/27/09 - R1 www.extech.com Copyright 2007-2008 Extech Instruments Corporation. All rights reserved including the right of reproduction in whole or in part in any form.