The Acousticom2 is an accurate and affordable RF and microwave meter. It presents measurements on a column of LED lights, and audio signal, and an alarm at high levels of RF (you can also switch the sound off). It measures the peak Volts/meter (V/m). 

With simple controls, easy to read results, but still using the same advanced microwave detector as our Acoustimeter, this instrument is perfect for those on a budget. It is smaller and lighter than the Acoustimeter, and comes in a carry pouch.

Includes instructions, battery, soft carry-case.  Lightweight and very compact (4½ “ x 2¼ ”x ¾”). 

For more info including example sounds see manufacturer's page: https://emfields-solutions.com/shop/acousticom-2/