How do you know what model of cobra alarm you have?

To determine the model of your Cobra alarm system, check the user manual or installation guide that came with the device, as it usually lists the model number. If you don't have the manual, look for a label or sticker on the alarm unit itself, typically located on the back or bottom. Additionally, you can visit the Cobra website or contact their customer support with the serial number for assistance in identifying your model.