Sealey tpms service pack tool kitvalve deflator tool sealey tpms4 this valve deflator tool from sealey is colour coded and marked ensuring each tyre pressure monitoring system tpms sensor is fitted back to the correct location on the vehicle eliminating the risk of having to re set each valve cap is fitted with an internal pin which releases air upon fitment preventing damage to tpms sensor sealey tpms4 tpms valve deflator tool 4pc