TESTER ORDER TO CONTROL OF ANY FAILURE ON YOUR VEHICLE. CHOSEN FOR HIS LITTLE VOLUME MAY BE GETTING IN THE GLOVE BOX IN E EXP MOVEMENT FOR VACANCES.SONT PRICE NOT REALLY HAVE THE CHER.JE TESTED AND IT IS EFFECTIVE HEALTH CLAIM TO BE SUCH AS THE PROFESSIONAL BUT SUFFICIENT TO WIDELY THE CONTROLS PERSONNEL..IL LIT CODES MANUFACTURERS AND I FIND THE EQUIVALENT LIST THESE CODES ON THE INTERNET AND I THEREFORE RECOMMENDED DEFAULT DELETE .JE SO THIS LITTLE self-powered EQUIPMENT BY VEHICLE