Features:LCD display, powered by cigarette lighter plug.Real time monitoring, individual tire data showed.Wireless transmission, no wires connection is needed.Visual and audible alarm.Tire leakage, high/low pressure and high temperature alarm.General:Brand: SteelmateModel: ET-710AEPressure unit: Bar / PSI (optional)Package size: 15 * 12 * 6cm / 6 * 4.7 * 2.4in Package weight: 240g / 8.5oz