[PREMIUM QUALITY]This Battery Current Sensor can provide long service life and excellent performance. Better treatment and circuit technology than most similar products. Replace the old battery sensor, [EASY TO INSTALL]1. Disconnect the negative cable and loosen the bolt with a bolt wrench. 2. Remove the bolt on the other side of the wiring with a bolt wrench 3. Remove the old battery sensor, replace it with a one, and reconnect the cables and bolts. Type:Car Battery Negative Electrode Sensor Cable Fitment Type:Direct Install Condition: Placement on Vehicle:Battery Part Number:61127616200 61126970685 61127838585 Fitment: For E90 E91 E92 E93 Color: As Shown Material: Plastic+Metal Package Contents: 1 x Car Battery 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.