Check the listing for details. Simpson Sound Measuring System Sound Level Meter System Model 884-2 Type S2A. Condition: Used. Listed at 30.00 USD. The Simpson Sound Measuring System is a top-of-the-line sound level meter system that is perfect for any business or industrial setting. This system is designed to accurately measure the sound level of any environment and provide reliable results every time. With its sleek design and durable construction, this sound level meter system is the perfect addition to your test, measurement, and inspection equipment. Featuring advanced technology and a sophisticated interface, the Simpson Sound Measuring System is easy to use and interpret. Whether you're a professional engineer or a trained technician, this sound level meter system is an essential tool that you need to have in your arsenal. So why wait? Get your hands on the Simpson Sound Measuring System today and experience the ultimate in sound level measurement!