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The transponder is a computer chip that is placed inside the head of the ignition key. This chip has an embedded code, uniquely defined to each key, which emits radio signals to another device installed in the car. The signals transmitted are predetermined radio frequencies that are identified by the device installed behind the steering wheel. After the identification, the device verifies the code and performs the functions that it had been asked to. In case the code is not recognized by the device, it will not unlock the car door or start the engine. Thus, only the owner who is in possession of the key will be able to start the car.

The transponder key gives the owner an access to the vehicle through keyless entry. A single key can be used for performing various functions such as locking/unlocking the car door, starting the engine, activating/deactivating the alarm and turning on/off the fuel pump. It is an added advantage as you don't have to carry different keys. When an intruder tries to hotwire your car, the system emits signals to the transponder key followed by the information received through the car sensors. This key ensures the security of the car by eliminating the chances of car theft.

In case you lose your transponder key or somehow lock them inside your car, you should immediately get the new key. A new key, known as a key blank, can be purchased from an online store. When you buy a key blank, you will have to laser cut it to match with the car ignition and then program it as per the configuration of the device. The key takes about 30 minutes to align itself with the device setup. You can contact a local locksmith for cutting of the key. The programming, on the other hand, is quite simple and you can do it yourselves. The key comes with a manual guide that gives step by step instructions for the configuration of the key.

Transponder keys are enabled with the new models of the cars, but can be installed in many other cars. This key is considered a safety device for cars because the engine will not work in the absence of the radio signals. The transponder key will not work, in case the micro chip is damaged as the signals will not be recognized by the device. Therefore the access to the car will be denied. Some of the transponder keys offer to shut down the fuel pump as well. Shutting the fuel pump is most beneficial for those who own high-end cars with the additional valet keys. Since the fuel pump gets locked by the device, the valet will only be driving with the little fuel left in the pipe.

To keep your car secure, you should get get a transponder key from a locksmith company that is reliable. You don't have to go too far to find one such company as you can save yourselves plenty of time by beginning your search online. There are a few online locksmith companies that offer transponder keys for various makes and models of cars. Besides transponder keys, a few of these companies even offer security systems including car alarm combos, backup alarms, various alarm accessories, power windows and locks, alarms for motorbikes and many other.

There are some companies that provide transponder keys as well as their replacements for different models of cars. You can search the Internet and find such companies that offer transponder key Ohio car owners can now stop worrying about their cars being stolen.