Extech 407730 Sound Level Meter
The Extech Sound Level Meter displays an analog bargraph wiht 50dB range that updates every 40ms for viewing trends.
- Utilizes 0.5"(12.7mm) condenser microphone
- Tripod mountable
- 40 to 130dB measuring range
|407730||Extech sound level meter|
|Usually ships in 1-2 weeks|
|407730-NIST||Sound level meter. NIST traceable|
|Usually ships in 1-2 weeks|
The Extech Sound Level Meter utilizes a 0.5" condenser microphone at a 40 to 130dB meauring range. The meter records max/min values over time. Applications include monitoring workplace machinery, installing audio and alarm systems, and product noise certification and reduction.
- Display counts: 2000 count LCD
- Range: 40 to 130dB
- Resolution: 0.1dB
- Basic accuracy: +/-2dB
- Condenser microphone: 0.5" (12.7mm)
- Analog output: AC
- Dimensions: 9 x 2.2 x 1.7"(230 x 57 x 44mm)
- Weight: 5.6 oz (160g)
- (1) Sound level meter
- (1) Microphone windscreen
- (4) AAA batteries
In The News
Welcome to the Spring 2021 edition of the Environmental Monitor, a collection of the best of our online news publication. In this issue, we showcase a broad range of water quality monitoring applications. Environmental Monitor Spring 2021
[caption id="attachment_32659" align="aligncenter" width="463"] Environmental Monitor, Spring 2021 [/caption]
[bctt tweet="Going from coast to coast, this latest edition covers nutrient loading impacts in San Francisco Bay, as well as restoration efforts in the Florida Everglades." username="FondriestEnv"]
Closer to the Midwest, we look at surface mining impacts on Appalachian streams , plastics in the Great Lakes , and wildlife returning to Michigan’s Rouge River .Read More
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.Read More
The Gulf Stream, the massive western boundary current off the east coast of North America, moves water from the Gulf of Mexico north and west across the Atlantic Ocean. There’s a lot of energy in that much moving water and researchers are trying to put it to use.
Although the Gulf Stream’s path shifts (researchers say it acts like a wiggling garden hose), in a couple of spots, it stays relatively stable. At one such spot off the coast of Cape Hatteras, North Carolina, researchers have dropped moorings and research instruments to study the current with the eventual goal of harnessing it for renewable energy.Read More