Our company sells a PLC trainning kit and provides plc education service.
(PLC : Programmable Logic Controller)

The PLC trainning kit have
(1) PLC : You can select a PLC manufacturer.(Siemens, Mitsubishi, LS, etc)
(2) Input : 32 point, Output : 32 point, AD/ DA module, etc
(3) Input button : push button (12), toggle switch (4)
(4) Output lamp : green lamp (8), red lamp (8)
(5) Input module(32 point) and output module (32 point) can be connected to outside device.
(6) There are digital switch (1), digital display unit (1)
(7) A/D input : volume register (1) : DC 0~10v, volt display meter (1)
(8) D/A output : DC ampere meter (1), 4~20 mA