A key programmer in Houston is someone that can program a digital key. These days more and more keys work electronically. That means that they will either use biometric device, some kind of chip with NFC capabilities, or a perhaps even a PIN code. All these systems are electronic which gives them a number of advantages – but can also lead to disadvantages. That is why using a locksmith can often be a useful way to address issues, but also to extend the capabilities of your lock.