[Excellent Function] Tire pressure monitoring system sensor (TPMS sensor) is a device that measures and transmits the air pressure and tempeure of a tire to the vehicle's computer. It works well in ensuring consistency, improve tyre life and reduce fuel consumption. Operating Frequency:315MHz Part Number:A0025407917,A0045429718,A0025406817,A0025406617,A0025404717 Condition:100% New Fitment: For Class(216) 2007-2010 For -55-063-500-550(218) 2010-2011 For -55-063-500-550(219) 2006-2009 For E Class(211) 2006-2009 For M Class(164) 2006-2009 For R Class(251) 2006-2009 For S Class(221) 2007-2010 For SL Class(230) 2006-2012 For SLR Class(199) 2008-2009 Colour:Silver & Black Material:Plastic+Metal Package Contents: 4 * Tire Pressure Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.