The FIU-004/005 interface and handhelds began production in 2003 with the circular optical connector. The 8 position program switch allowed for many program options on all three output connectors (Serial, USB, Parallel). Handhelds could have up to 8 buttons and the joystick and trackball were developed for variable optical output.
In 2009 we introduced the 900 series with three levels of interface offered a range. The FIU-904 was inexpensive and compact, while the the FIU-932 was very flexible and worked with all our devices.
In 2020 we began shipping the latest interface BIRCH-OIU. The bright 7" touch screen display displays responses as they happen and simplifies mode selection. is a drop-in replacement for the 932 interface and compatible with all your existing handhelds and bundles.