The Triggers & Measurement by Specialised Imaging can all be battery powered. All except SI-VT2 comes with a rugged enclosure which allows them to be used outside in all weathers and independent of mains power for up to 8 hours. They provide reliable optical/acoustic triggers for specific detection of projectile “shadow”s, blast/shockwaves and IR flashes. SI-VT2 measures time of flight and/or velocity using 3 input channels.
