Originally Posted by vasily
what exactly are these used for? excuse my ignorance...
The concept for the Staun Tire Deflators was born in 1998 when Staun Product's two directors found themselves on a cramped barge with 50 offroad trucks on board. They noted that all of the vehicle owners, including themselves, were squatting between the vehicles with keys, matchsticks, and tire pressure gauges in hand, and flashlights in their mouths. Both men knew there had to be an easier way to deflate tires accurately and safely.* After two years of development and registry of a worldwide patent, the Staun Tire Deflators emerged. The device simply screws onto the tire valve stem and deflates to a preset pressure that is fully adjustable to suit each user's requirements.
Airing down with the Staun Tire Deflators is very easy. Simply screw a deflator onto each of the four valves on your vehicle. The Stauns will begin releasing air from your tires and will stop at a target pressure preset by you. Adjustment of the Stauns is very easy and is controlled by the adjustment knob on the top of the deflators. The lock ring prevents inadvertent changes in the pressure desired, but permits easy resetting of the pressure at which you want the deflators to stop.