Extech Compact Hygro-Thermo-Anemometers
The Extech Compact Hygro-Anemometer is an environmental instrument that measures multiple indoor and outdoor conditions.
Features
- Field replaceable low friction vane wheel improves air velocity accuracy
- Built-in sensors measure 11 environmental conditions
- Data Hold ‘freezes’ displayed reading
- Free ground shipping
- Expedited repair and warranty service
- Lifetime technical support
- More
This 11-in-1 professional measuring instrument provides multiple functions to measure environmental parameters in indoor and outdoor settings. Measurement capabilities include air velocity, air flow, wind chill, humidity, dew point, wet bulb, heat index, light, temperature, barometric pressure, and altitude. The anemometer uses a low-friction ball bearing mounted wheel designed for high accuracy. A built-in microprocessor circuit assures excellent performance. The humidity meter uses a high precision humidity sensor for a fast response time.
Concise and compact button arrangement simplifies operation, where five air velocity measurement units can be selected by a front panel button. The backlit LCD dual display simultaneously shows relative humidity and temperature or air velocity and temperature measurements. The field replaceable low friction vane wheel improves air velocity accuracy.
- (1) Meter
- (1) Wrist strap
- (1) CR2032 battery
In The News
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California Polytechnic State University, San Luis Obispo (Cal Poly, SLO), has been monitoring Morro Bay for decades, and while the monitoring program has changed over the years, the dedication to monitoring the bay has remained the same. 
 
The project started in 2006 as a Packard Foundation-funded initiative to monitor water quality flowing in and out of Morro Bay. The goal at the time was to use the data collected to develop and inform an ecosystem-based management plan in collaboration with the Morro Bay National Estuary Program (MBNEP). 
 
Since the estuary was the focus at the time, researchers were monitoring water flowing into the estuary from Chorro Creek and Los Osos Creek.
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 The Fox River flows into the bay, carrying excess nutrients largely the result of non-point source runoff from the watershed. With a history of deterioration extending well into the last century, the bay ecosystem suffered significant declines in water quality. 
 
 This, in turn, stimulated major clean-up and ongoing restoration efforts to improve water quality. Tracking these changes is an important aspect of ecosystem management.
Read MoreCross-Border Sewage Contaminated Flows: Monitoring the Tijuana River
The Tijuana River runs across the US-Mexico boundary, flowing into and throughout southern California, carrying with it nutrients and contaminants throughout the estuary. In recent decades, the flows have been heavily polluted with untreated sewage from the City of Tijuana. 
 
The wastewater enters the greater Tijuana River estuary, impacting coastal communities and disrupting the natural environment. In order to better understand these cross-border flows, researchers out of San Diego University sought to monitor the waterway test the capabilities of in-situ sensors to measure the contaminated water. 
 
Natalie Mladenov and Trent Biggs were two of the researchers involved in the project, deploying a real-time monitoring system in May of 2021.
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