What's New

Extech Instruments: Psychrometers

Three models of psychrometers for differential measurements are available - RH300, RH350, and RH401. In addition to differential measurements, they feature simultaneous viewing of wet bulb, dew point, relative humidity, and air temperature. Model RH401 incorporates a noncontact infrared thermometer to calculate the T1 (surface temperature)-dewpoint differential. The display can be switched to give readings in Fahrenheit or Celsius. A built-in RS232 interface, with optional RS-232 cable, using Windows® HyperTerminal software allows downloading data to a PC. An optional RH355 accessory kit is available which includes the RH350 psychrometer, two type K temperature probes, 33-percent and 75-percent calibration bottles, an RS-232 cable, four AAA batteries, and a carrying case.

Extech Instruments, 285 Bear Hill Rd., Waltham, MA 02451; 781-890-7440; www.extech.com.

eProduct #194

Did you enjoy this article? Click here to subscribe to The NEWS Magazine

You must login or register in order to post a comment.



Image Galleries

2015 ACCA Conference

Images from the 2015 ACCA Conference in Grapevine, Texas. Posted on April 8, 2015.


NEWSMakers: Mark Crockett
Mark Crockett vice president, Crockett Facilities Services, explains the importance of technician training, the value of being a top minority-owned company in the U.S., current projects the company is managing, and much more. Posted on April 24.
More Podcasts


NEWS 04-20-15 cover

2015 April 20

Check out the weekly edition of The NEWS today!

Table Of Contents Subscribe

Global Warming

Do you believe in man-made global warming?
View Results Poll Archive


2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

More Products

Clear Seas Research


Clear Seas ResearchWith access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.


Magazine image
Register today for complete access to ACHRNews.com. Get full access to the latest features, Extra Edition, and more.


facebook icontwitter iconyoutube iconLinkedIn i con