The Pico Technology Keyless Entry Carrier Signal Detector, No. TA330, is a 10' long lead and detector designed to allow technicians to detect the presence of the keyless entry carrier frequency in the range of 124-140 kHz. This detector enables technicians to check each pickup coil and identify a unit or units that need to be replaced, according to the company. The detector does not pick up or decode the secure information used to unlock the vehicle.