TireMinder A1A Tire Pressure Monitoring System (TPMS) for RVs, MotorHomes, 5th Wheels, Motor Coaches and TrailersWith a large, beautiful display, the TireMinder® A1A tire pressure monitoring system is engineered to be a simple, yet powerful tool for monitoring tire conditions, no matter where the road takes you.Just like the original State Road A1A, the TireMinder® A1A allows you to sit back and relax, winding through all of the hidden paths, while knowing your vehicle is in good hands.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, covering €œall that you haul.€ Each one of those positions also updates on a consistent 4 minute update cycle. Not only do you get updated readings every four minutes, but 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) 4 or 6 screw on transmitters, and much, much more (extra batteries, €œO€ rings, bracket, locks, pouch, free lithium battery exchange program and unlimited €œlive€ phone/email support.) TireMinder®, the multi-year gold medal award winning TPMS!Highlights:Large, beautiful display (40% LARGER than previous models!)Monitors up to 22 tires (0-232 PSI)0.5 oz. transmitters screw on valve stemsDisplay PSI and temperature for each tireVisual and audible high/low pressure alarmsBLOW-OUT ALARMSTransmitters have REPLACEABLE batteriesRechargeable monitor with battery indicatorSingle action memory deleteFront or rear disconnect modesRapid connectRe-set and automatic search