What you see is the Mini-Z version (TYpe 1) which does not come with the TD-1 (transponders). It uses the crystals on the Mini-Z to count the car, no transponders. This system will not work with the Type 2 system which uses the TD-1. A very cheap price on the system if you ask me. New, the system cost $1650.00. I may look into this for my personal use!