What is the sensing distance of a smart car key?

[ORemington]

Smart car keys typically have a sensing distance of about 1.5 meters from the left front door, while other doors are less than 1 meter; however, this distance depends on the car brand and whether the battery is sufficient, with a maximum range of up to 2.5 meters. Beyond this range, the door cannot be opened. Method for smart car key entry: When the key approaches the car body, the door automatically unlocks and the anti-theft alarm state is deactivated. The address indicator light flashes twice, and you can directly open the car door at this time. When the key moves away from the car body, the door automatically locks and enters the anti-theft state. At this point, the turn signal flashes once, and the horn emits a brief beep. Method for opening the trunk with a smart car key: Press the unlock button on the remote once, or hold the unlock button for more than 2 seconds. The rear lights will flash three times, indicating that the locked rear door has been successfully unlocked.