DYNALEC SPT SINGLE JACKBOX

It is used for speaking and listening in Sound Powered Phone System. Also available as duals and quads jackbox.
Features
*Watertight Jackbox Type G15A, provides a single H27A sound powered telephone jack mounted in a brass enclosure.
*For use with sound-powered equipment equipped with H39A plugs.
*The jack is designed to prevent short circuits from water entry into the enclosure when the cap is not covering the jack.
*A screw-on watertight cover for each jack is provided with each unit, and is secured to the front panel of the unit with a 6-inch lanyard.