Airmar WeatherStation Humidity Sensor Module
Features
- User-replaceable module
- Compatible with 110WX, 150WX & 200WX
In The News
Airmar WX Series WeatherStations prove flexible in the field
Airmar’s business model is built entirely around transducers, mainly for boating and environmental applications. That meant it was only natural to base the WX Series WeatherStations around four transducers. 
 “The weather station uses transducers to measure wind ultrasonically,” said Irene Robb, Airmar product manager. 
 The four transducers are paired to send ultrasonic sound waves back and forth. Wind passes through a horizontal gap in the weather sensor housing and pushes the sound waves around. 
 The WX Series measures wind speed and direction based on delays or accelerations in sound wave transmission. Robb said Airmar engineers designed them to operate at a low frequency to minimize interferences.
Read MoreCalifornia researcher's plodding RV crosses nation sampling methane
They’re cruising slowly down the highway in a big RV, with an air intake pipe hanging off the front. Don’t be fooled--this is not some leisure ride. 
 This cast of researchers is out to see the U.S. and sample its methane concentrations. 
 "I was the guy on the right lane driving at 40 miles an hour on the interstate,” said Ira Leifer, a researcher with the University of California Santa Barbara’s Marine Science Institute. 
 After years of studying methane, Leifer decided to turn the drive home from a 2010 research cruise on the Gulf of Mexico into a methane study. So, he outfitted a rented RV with a gas chromatograph and an air intake pipe to sample methane during the drive from Florida to California.
Read MoreCharles River Algal Blooms Stop Swimming and Launch a Floating Wetland
The Charles River used to be a swimming hotspot for Cambridge and Boston residents. 
 
 Decades of industrial pollution and nutrient runoff have degraded water quality and eliminated public swimming in the Lower Charles, but a movement is afoot to get Boston and Cambridge back in the water. One step toward the goal of a safely swimmable river—without the need to obtain a permit, as is now necessary—is detecting and managing the harmful algal blooms that appear on the river. 
 
 An experimental floating wetland and new research and analysis of water quality data that shows a possible effective detection system for algal blooms on the Charles River are two new steps toward the goal of safe, accessible swimming.
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