U812 Car Tire Pressure Monitor System 4 External Sensor Solar Mini USB Connection Mode<br /><br />Description:<br /><br />Battery life more than 2 years.<br />LED display and 4 external sensors.<br />Support tire position exchange function.<br />Sensor protection grade: IP5K4K Waterproof<br />With FREESCALE Chip and RENATA anti-explosion battery.<br />Solar energy to get electricity, with extra mini USB port to be charged.<br />With two pressure unit &amp;quot;PSI, BAR&amp;quot; and two temperature unit &amp;quot;\u2103, \u2109&amp;quot; for option.<br /><br />Display Specification:<br /><br />Working Temperature: (-20\u2103 ~ +80\u2103)<br />Stroage Temperature: (-30\u2103 ~ +85\u2103)<br />Input Voltage: DC 8V~16V<br />Transmitting Frequency: 433.92MHz<br />Size: 34*43*84mm (L*W*H)<br />Weight: 78g<br /><br />Sensor Specification:<br /><br />Working Temperature: (-40\u2103 ~ +105\u2103)<br />Stroage Temperature: (-40\u2103 ~ +120\u2103)<br />Pressure Range: 0~116psi (0~8bar)<br />Pressure Accuracy: &amp;plusmn;1.5PSI (&amp;plusmn;0.1bar)<br />Temperature Accuracy: &amp;plusmn;3\u2103<br />Transmitting Power: &amp;lt; 10dbm@50&amp;Omega;<br />Transmitting Frequency: 433.92MHz<br />Battery Life: &amp;gt; 2 years<br />Height: 15mm<br />Diameter: 23mm<br />Weight: 9.5g<br /><br />Package Included:<br /><br />1 X U812 Tire Pressure<br />4 X External Sensor<br /><br />Note: <br /><br />If you want an internal sensor tire pressure monitor system, please click Here.