Features: 100% DIY installation. LED cigarette plug transceiver. Individual tire data showed. Wireless transmission, no wires connection is needed. Real time monitoring. Visual and audible alarm. Fast / slow leakage alarm. High / low pressure alarm. High temperature alarm. General: Brand: Steelmate Model: TP-74B Pressure unit: Bar / PSI (optional) Package size: 15 * 12 * 6cm / 6 * 4.7 * 2.4in Package weight: 265g / 9.3oz