Sound Level Meters
Essendant SPEAKERUSB SOUND BARBK
These 10W Desktop USB Speakers are a nice upgrade for the home or office They connect to a standard USB port to provide dynamic Stereo sound for your workspace Simply plug the USB cable into your computer and our plug-and-play design is ready to use Position the soundbar under your monitor creating a 3D sound stage to listen to your music or stream and watch your favorite movies The speakers have a built-in sound chip allowing direct plug-and-play with a simple USB connection and eliminating the need for a separate audio connection The speakers deliver clear and crisp stereo sound Mounting Details- Desktop Cable Length- 6 ft Connector/Port/Interface- USB In Output- 10 W
Cole-Parmer Extech 407730 Digital Sound Level Meter; 40 to 130 db
Economical meter measures sound decibel levels for a variety of workplace situations including workplace machinery monitoring and audio/alarm system checks. Meter features a 40 to 130 dB adjustable measuring range with selectable A/C weighting and fast/slow response. Digital display includes 0.1 dB resolution plus analog bar graph for easy readability. MAX Hold function stores loudest dB level reached and auto power off conserves battery life over time.