Features: The test platform is a versatile tool for testing and diagnosing the EWS3 and EWS4 systems in various vehicles. This test platform provides wide compatibility, making it suitable for multiple car models. Automotive professionals and repair shops can rely on this test platform to efficiently maintain and troubleshoot electronic systems. Car owners and enthusiasts can easily perform tests and diagnostics to ensure the optimal functioning of their vehicles' electronic systems. With its user friendly design, this test platform simplifies the process of identifying and resolving electronic problems. Specifications: Size:As Picture Shown Test tool: EWS3 EWS4 Chip: PCF7935 chip or EML electronic chip Voltage: 12V Material: plastic+metal For E65 E66 Package Includes: 1x Test Platform note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.