What is the remote control range of a car key?

[VanAshlyn]

The maximum reception distance of a car key remote control is about 50 meters, which is achievable only without any electronic interference or obstacles blocking the signal. Typically, within a range of over 10 meters, the signal is still good and most easily received. Additionally, the reception distance is related to the quality of the remote key and other factors. A remote key allows you to unlock and lock the car doors from a distance without inserting the key into the lock. Its advantages include: regardless of day or night, there's no need to locate the lock hole, enabling convenient remote locking and unlocking. The key emits a weak radio wave, which is received by the car's antenna. The electronic control unit (ECU) then identifies the signal code, and the system's actuator performs the action of unlocking or locking. This system mainly consists of two parts: a transmitter and a receiver.