Profile: Photo-Sonics International Ltd supplies instrumentation systems. Our products include high speed film & digital cameras, analogue & digital data recorders, telemetry, GPS timing systems to the aerospace, automotive, defence and development industries. The D5000 digital flight data recorders provides reliable high bit rate digital recording in a compact, rugged housing. This series features front mounted connectors, front configured signal modules and enhanced channel capacity, providing conveniently adaptable data acquisition resources in a small, lightweight package. We provide optical tracking systems for manual & automatic (TPSI) tracking of airborne and ground based targets. We can offer solutions for fixed installations and man-portable systems, when mobility is the key.