Like-new Pentax flash unit for sale. Uses AA batteries.
"P-TTL mode with pre-flash allows for more accurate flash photography. Wireless P-TTL flash is available when used with PENTAX DSLR cameras that support wireless flash operation. Includes an autofocus assist beam for focusing in low light or low contrast situations. LCD display shows the effective range of the flash in P-TTL, TTL and AUTO modes. Modeling light feature strobes the flash for one second, so the photographer can check for unwanted shadows or highlights."