?This product can help monitoring tire pressure£¬ prevent flat tire£¬ save fule£¬ reduce tire wear. <br><br><strong>Features:</strong> <br>100% DIY installation. <br>Match with valve-cap external sensors. <br>Real time monitoring. <br>Wireless transmission£¬ no wires connection is needed. <br>Theft deterrent locking system. <br>Convertible pressure unit (Bar / PSI). <br><br><strong>General:</strong> <br>Brand: Steelmate <br>Model: TPMS-A86 <br><br><strong>Valve-cap sensor specifications:</strong> <br>Operating frequency: 433.92MHz ¡À 0.05MHz <br>Operating voltage: 1.8 ~ 3.3V <br>Operating current: ¡Ü18mA <br>Static current: ¡Ü1uA <br>Operating temp.: -20¡æ¡«+60¡æ / -4¨H ~ + 140¨H <br>Battery model: CR1632 <br>Battery voltage: 3V <br>Battery Life: ¡Ý2years <br>Package size: 15 * 10.5 * 4.5cm / 5.9 * 4 * 1.8in? ? <br>Package weight: 227g / 8oz <br><br><strong>Package List:</strong> <br>1 * Display <br>4 * Valve-cap sensors <br>1 * Set of Accessory <br>1 * Manual