1. Fitment: EWS3 EWS4 test platform replacement for EWS Programmer, test platform can work with all rechargeable keys. 2. Rechargeable: Besides for key programmer, EWS test platform is the only device in the current market which to charge for the rechargeable key. 3. Test for PCF7935 Or EML: EWS test platform is to test whether the PCF7935 chip or EML electronic chip key complete programming or not. 4. Test Items Working State: to test EWS3, EWS4 working or not, test EML key electronic chip working or not, and test after fixing EWS data. 5. Easy to Use: Simple to operate, plug and play, no modification required, no complicated operations, convenient and easy to use. It can perform 3 functions as follows without connecting for : 1. to test EWS3, EWS4 working or not 2. to test whether the PCF7935 chip or EML electronic chip key complete programming or not. 3. to test EML key electronic chip working or not, and test after fixing EWS data. Step 1: Connect EWS3 or EWS4 for / for Land EWS Test Platform. : After Supplying 12V Power, You See White Indicator Flashes. Place the chip on the test platform, after the chip is correctly read out, the red indicator flash. Step 3: Put the induction coil on the sensing area, the indicator light flash. Step 4: For 7 series E65 E66 and X5 EML keys are rechargeable. And this test platform is compatible with all rechargeable keys. Note:Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:As Shown Material:Plastic Package Contents: 1 * ECU Test Immobiliser Coil 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.