TA21 Printed Circuit Board for Mercedes IR 315Mhz (Abrites)
TA21 is a PCB for FBS2 & FBS3 Mercedes IR key fobs that use the chrome case. Frequency - 315 Mhz.
It can be programmed to the vehicle with the Abrites PROTAG programmer only. These keys have the ability to both start the car and to function as remote controls.