Serial number examples:
- Transponder SIEMENS - 8-characters code, first symbol - "Y", YR000000 - YXXXXXXX
- Valeo IR old - 5-characters code, first symbol is digit 0 - 8, 00000 - 88888
- Megane IR Siemens - 5-characters code, first symbol "S", S1111 - SUUUU
- Sagem Transponder RF - 8-characters code, first symbol "A" or "E", A0000000 - EZZZZZZZ
- Twingo IR TRW - 7-characters code, first symbol "W", WBAAABA - WZZZYZZ
- Valeo Transponder IR - 8-characters code, first symbol "Z", ZR000000 - ZXXXXXXX
- Valeo IR - 7-characters code, first symbol "P", "R" or "V", P000000 - VFFFFFF
- Valeo Transponder RF - 8-characters code, first symbol "F", FR000000 - FXXXXXXX
Serial number may be printed on label, PCB or plastic:
Serial number on plastic - WJPUUFN
Serial number on yellow label
Serial number on PCB - P21D8AE
Serial number on PCB - FX79DD2H
Serial number on white label - SE18R
Serial number on plastic - S55TR
Calculator is available as part of software for Renault cars .