This flash builds upon the earlier AF200S flash and offers TTL (through the lens) flash metering on certain Pentax cameras including the LX, MZ-series and Super Program.

It also works great on the Pentax ME and ME Super cameras.

It is a flexible unit, with manual and two automatic settings + TTL auto. 

Will also work with all other cameras with a standard flash hot-shoe.

Takes 4x AA batteries.

Tested and in full working order.