Oricom Real Time Tyre Pressure Monitoring System Including 4 Internal Sensors: The Tyre Pressure Monitoring System Includes 4 Internal Sensors But has the capability of simultaneously running up to 10 sensors through the solar-powered LCD unit. This unit is the perfect solution for those with a towing vehicle and caravan/boat/camper or box trailer. TPMS in Australia are being used increasingly as safety devices, and with more people jumping in their vehicles to head around Australia and tap into the amazing playground we all call home, accurately reviewing a vehicle tyre pressure in an instant, minimises the risk of tyre failure leading to disaster, while at the same time, positively affecting the handling of the vehicle. Ensuring the tyres are optimally inflated will also positively affect the fuel economy of a vehicle. NOTE: The TPS10 INTERNAL sensor model is not compatible with the TPS10 EXTERNAL sensor model. Only compatible for use with alloy wheels. Oricom TPS10-4i Features: Solar-powered display unit Long-lasting display unit battery life IPX7 Waterproof rating Wireless transmission between the sensor and display unit Adjustable threshold value Auto brightness on display Real-time monitoring with pressure and temperature at a glance Compact design Visual and audio alarm Optional Micro USB input Intelligent sleeping mode for power-saving Easy to install High/low-pressure warning Sensor failure warning 12 Month warranty Oricom TPS10-4i Specifications: SENSOR Operating frequency 433.92MHz ± 0.015MHz Operating voltage 2.3 ~ 3.3V Operating current ≤9mA Static current ≤0.5uA Operating temperature -20˚C ~ +80˚C Storage temperature -40˚C ~ +105˚C Battery life Approx. 5 Years Pressure range 0-7.9Bar / 0-86PSI DISPLAY Operating frequency 433.92MHz ±0.015MHz Operating current ≤3.5mA Static current ≤45μA Operating voltage 2.6 ~ 3.6V Operating temperature -20˚C ~ +70˚C Storage temperature -40˚C ~ +85˚C Built-in battery capacity 500mAh Charging temperature -10˚C ~ 65˚C Solar charging current ≥15mA (at 5500LX 25˚C) USB charging current ≤70mA ADJUSTABLE ALARM VALUES High-pressure value 2.6~7.9Bar/37~86PSI Low-pressure value 0.9~3.9Bar/13~55PSI