nøkkelsensor
A nøkkelsensor, translated to English as a "key sensor," is a device designed to detect the presence or absence of a key. These sensors are commonly found in automotive systems, such as ignition systems, to prevent a vehicle from being started or operated without the correct key. In other contexts, a nøkkelsensor might be used in security systems or electronic locks to verify the insertion or presence of a key before granting access. The specific technology used can vary, ranging from simple mechanical switches that are activated by the physical presence of a key, to more advanced electronic systems that read unique identifiers from a key. The primary function is to provide an input signal to a larger system, indicating whether a key is in its designated position or has been recognized. This simple yet crucial function enhances security and operational control in various applications.