Forgot to mention PTX transponders are available without having to have an AMB PT first, need to order a 'Custom ID' PTX version (R9980, R9981 or R9984). Also customised PTX versions are available with various LED display colours (basic PTX is blue) plus custom power lead lengths (R9982, R9983 or R9985). Customised clone orders use the PDF form. Details and prices are at
www.rclaps.com
Terry S