MaxiTrac Tyre Pressure Monitoring System - Monitor tyre pressures in real-time and be notified of any slow leaks or low pressures For the serious 4x4 enthusiasts, this piece of gear is one the most useful, hi-tech accessories which is sure to come in handy on the trails or on the road. The MaxiTrac Tyre Pressure Monitoring System or TPMS comes with 4 replacement valve caps with built-in air pressure sensors which read tyre pressures on all 4 corners. The sensors feed data to a wireless display which plugs directly into your 12v accessory port for a real-time readout of all of your tyre pressures. The unit will sound an alarm if it detects abnormal pressure or high temperature in any of the tyres before you run into any nasty surprises or breakdowns on the side of the road. The MaxiTrac TPMS is easy to install. Thanks to it's built-in 12v accessory plug, simply plug it into the car and replace your valve caps with the included sensors. It's literally that simple, no drilling, cutting or wiring. The all-weather design makes this TPMS great for any 4x4, car or ATV. It is rated to read pressures from 0-99 PSI (7 Bar) so is suitable for most applications. Whilst this piece of kit is a great addition to any car on the road, it is particularly useful for 4x4s or gripped up track cars where tyre pressure changes and readings are taken frequently to ensure optimal performance. With real-time data being displayed around the clock, you don't need to consistently check pressures and re-adjust. WARNING — KEEP BUTTON BATTERIES OUT OF REACH OF CHILDREN Swallowing may lead to serious injury in as little as 2 hours or death, due to chemical burns and potential perforation of the esophagus. Never allow children to replace button batteries in any device. If you suspect your child has swallowed or inserted a button battery immediately call the 24-hour Poisons Information Centre on 13 11 26 for fast, expert advice. If your child is having any difficulty breathing, contact 000. Regularly examine devices and make sure the battery compartment is correctly secured, e.g. that the screw or other mechanical fastener is tightened. Do not use if the compartment is not secure. Flat batteries can still be dangerous. Dispose of used button batteries immediately and safely. Tell others about the risk associated with button batteries and how to keep their children safe.