With a large, beautiful display, the TireMinder® A1A tire pressure monitoring system is engineered to be a simple, yet powerful tool for monitoring tire conditions. The A1A features straightforward visual alerts, as well as powerful audible alerts, with easy to understand icons to know exactly what type of issue is occurring and where. From boat trailer to coach, the A1A monitors up to 22 tire positions, at up to 232 PSI. Each one of those positions updates on a 4 minute update cycle. The device also performs self-diagnostics every 5 seconds to instantly warn of unstable tire conditions. Besides pressure, the A1A will immediately alert if the internal tire pressure rises above 167°F. It also features a single action search mode which pushes updates to the monitor in less than 10 minutes. The A1A also offers front or rear disconnect modes. Separating a towing vehicle from a towed trailer, 5th wheel, car, etc., is quick and easy. A simple press of two buttons allows for temporary disconnect as well as reconnect when the two pieces are re-united. The TM-A1A kits come with a booster (to eliminate electronic interference) screw on transmitters, and much, much more. TireMinder®, the multi-year gold medal award winning TPMS!