It is very important to safeguard our assets, vehicles being one of them. Incidents of auto thefts are on the rise and insurance companies have started making tough rules on auto insurance cover for theft as they know, clients become relaxed and careless and do not even take basic or necessary steps to protect their vehicles from being stolen. Several technological gadgets have been introduced in the market to control auto theft and the most successful of all of them have been the auto transponder key. An auto transponder key is a technically advanced version of a micro chip inserted in the car key. This chip reads the particular instruction when the key is inserted into the ignition and if reads relevant and programmed instruction the car starts else, the process fails. Thus the transponder offers better security than the cut or the make of key alone. The advent of transponder key has made the car accessory market beam with sign of prosperity. The popularity is so high that every new car registered gets the auto transponder key so that the car can be operated only with the key which has the microchip containing the security code. The newer versions of car however are introduced with car keys which already have a transponder and users generally do not come to know about it till they need a new one. For more details on replacement keyless entry click the link.