I got my hands on a "spy tracker system" from my son because the "main station" broke down and maybe there is ton of possibilities to use this with the ezb?

Basically this toy has four parts.
1. One main station whith includes a speaker and a light.
3. Three smaller wireless detectors (infrared?)

See pdf:
www.wildplanet.com/help/instructions/SpyTrackerSystem.pdf

Any ideas of what can be used with the ezb'?
There are only two wires from the ir-detectors to the board. (see pictures below)