The ideal solution for both 6-wheel vehicles and 4-wheel vehicles with a 2-wheel trailer. Our tyre monitors suit all 6-wheel motorhome commercial vehicles (or 4-wheel car plus 2 trailer wheels) and monitors tyre pressure 24 hours a day real time, also when the car is parked. Units can be linked to GSM or GPRS telemetry for sending SMS alarms when deflated or over-temperature conditions arise. Optional Extra. This system does not require any programming and is instantly ready for use after installation of sensors and power connection to the display. Both permanent wire and cigarette lighter connection cables are included in the kit, 24 hour permanent wire connection is recommended. By pressing the knob on the front panel of the display, user can check at the same time four tyres´ pressure or four tyres´ temperature. Backlight turns off automatically in 10 seconds.