Outdoor Microphone Systems from Cirrus Research plc

The MK Series of Microphones include purpose designed Outdoor Microphone Systems. These include the MK:437 and MK:438 Heavyweight and the Lightweight MK:429 units that provide different levels of weather protection.

http://www.cirrusresearch.co.uk/out_mics.html

Portable Induction Loop Assistive Listening Systems from Oval Window Audio

The Microloop II is a compact & transportable induction loop assistive listening system with a 90-foot loop wire suitable for use at home as well as in classrooms, meeting rooms and automobiles (with optional car kit).

http://www.ovalwindowaudio.com/microloopspec.htm

Not all basic sound level meters are created equal. For certain applications basic summary noise...

www.shawcity.co.uk

Not all basic sound level meters are created equal. For certain applications basic summary noise data, such as SPL, Lmin, Lmax, Leq/Lavq or Peak, may be all that is required.

http://www.shawcity.co.uk/documents/QuestBasicSoundLevelMeters.pdf

In-Line Mic Jack

Home About Us Contact Info Feedback News Promotions FAQ Online Catalog Shipping Charges Repair Service In-Line Mic Jack Chrome plated brass in-line mic jack. Great for making microphone extension cords. Available in 4 or 5 pin model. Our Price: $3.99 Quantity Style: 4 pin 5 pin View Basket Secure

http://www.thunderbolttraders.com/item529375.ctlg