Extech RH390 Precision Psychrometer

The Extech Precision Psychrometer simultaneously displays humidity/temperature, humidity/dew point, or humidity/wet bulb.

Features

  • Data hold and min/max functions
  • 2% RH accuracy with less than 30 second RH response time
  • Slim design with rubberized sides allows for a better grip with one-hand operation
Your Price $225.49
Usually ships in 1-2 weeks
Extech
Free Lifetime Tech SupportFree Lifetime Tech Support
Free Ground ShippingFree Ground Shipping
ImagePart#Product DescriptionPriceStockOrder
Extech RH390 Precision PsychrometerRH390 Precision psychrometer
$225.49
Usually ships in 1-2 weeks
Extech RH390-NIST Precision psychrometer, NIST traceable
$362.99
Usually ships in 1-2 weeks

The Extech Precision Psychrometer features a slim design with rubberized sides for a better grip and one hand operation. The meter simultaneously displays humidity/temperature, humidity/dew point, or humidity/wet bulb. Additional meter functions include data hold, min/max function, automatic power off with disable, and low battery indicator.

  • Humidity range: 0 to 100%RH
  • Temperature (internal) range: -4 to 199°F (-20 to 100°C)
  • Basic accuracy: ±2%RH, ±1.8°F/1°C
  • Maximum resolution: 0.1%RH, 0.1°F/°C
  • Dew point range: -22 to 199°F (-30 to 100°C)
  • Wet bulb range: 32 to 176 °F (0 to 80°C)
  • Dimensions: 7.8x1.7x1.3" (200x45x33mm)
  • Weight: 7oz (200g)
  • (1) Meter
  • (1) Carrying case
  • (1) 9 V battery
Questions & Answers
No Questions
Please, mind that only logged in users can submit questions

In The News

Restoring Native Brook Trout in North Carolina

The North Carolina Wildlife Resources Commission ’s Inland Fisheries Division has been working to restore brook trout in the state. Coldwater research coordinator Jacob Rash, who works with the brook trout team technicians on this project, spoke to EM about the work. “In North Carolina, brook trout are our only native trout species,” explains Mr. Rash. “With that come biological and ecological considerations as well as cultural importance. A lot of folks here grew up fishing for brook trout with their relatives, so it's an important species that we work to try to conserve. We've done quite a bit of work to figure out where those brook trout populations are and what they are, in terms of genetics.

Read More

Robotic Fish May Reduce Live Fish Testing Near Hydroelectric Plants

Each year in Germany, as many as 450,000 living fish undergo live animal experiments to test how fish-friendly hydroelectric power plants in the country are. The idea is to discover how readily the fish can move through hydroelectric turbine installations in order to ultimately reduce mortality rates. Of course, subjecting live fish to a potentially deadly test to save others is a bitter irony. And it's one that a team of scientists from the RETERO research project hopes to eventually mitigate with a robotic fish for testing. EM corresponded with Olivier Cleynen and Stefan Hoerner from the University of Magdeburg about the complex flow conditions that set the parameters for the project.

Read More

Mobile HAB Lab, Citizen Scientists Building Awareness

News stories about dogs getting sick from harmful algal blooms (HABs) in lakes have caused worry among members of the public this summer more than once. But Regional Science Consortium (RSC) Executive Director Dr. Jeanette Schnars and a dedicated team are bringing awareness about HABs to the public with the Mobile HAB Lab. “We just launched the HAB Citizen Scientists program this year,” explains Dr. Schnars. “It helps us work with people, especially people who spend time at marinas frequently, that are out there all season long.” The season for boaters at Presque Isle, where RSC is located, starts in mid-May and usually continues through the beginning or middle of October.

Read More