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Extech RH401 and RH405 Kit
Psychrometer and Infrared Thermometer

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
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
RH405 kit includes RH401, 33% and 75%
calibration bottles, PC cable, 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

Ordering Information
Model	Description	Buy Online	Price
RH401	Extech RH401 Psychrometer + Infrared Thermometer		$189.99
RH405	Extech RH405 Psychrometer + Infrared Thermometer Kit	Discontinued
Included Accessories
	RH401 includes: 4 - AAA batteries 1 - Carrying case RH405 kit includes: 1 - 401 meter 1 - RS-232 cable 4 - AAA batteries and carrying case 1 - Set of 33% and 75% calibration bottles	Included
Optional Accessories
589260	Extech 589260 RS232 PC CABLE FOR RH401 and RH405	Discontinued
RH401CAL	Extech RH401-CAL, Humidity Solution Kit, 33% and 75%	Discontinued

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.

$40.00 Minimum on Total Order