Product Description Opel Astra build after 1998, Zafira build after 1998, Corsa build after 2000. Functions:-Reset Inspection Intervall 15.000 km or 1 year 15.000 km or 2 years 30.000 km or 2 years (LONGLIFE) Package Contains:-Service Intervall Reset Unit with diagnostic connector. Workable Model:- Workable Model Opel Astra build after 1998, Zafira build after 1998, Corsa build after 2000. Operating Instructions:- Usage: - Plug the Device into the OBD2 socket of the car - All LED`s will blink and than stay on - Turn ignition key to enable the board electronic but don`t turn on the motor - Press the button for the operation you want to perform shortly - The LED of the choosen operation will light and the other Led`s will be off - LED`s will perform a light chain which means reset is done. Reference Data:- That product is not with the CE certifications, we suggest to check from your country's regulation to determine if no problem in importing of it. Six months warranty after the delivery day. Any replacement will be sent by DHL to the customer after received the defected item.