Optical trigger from Specialised Imaging has spectral response from 300 to 1300 nm

The battery-driven OT3 optical trigger is used with high-speed cameras on proofing ranges. The sensor is a blue enhanced array of 12 diodes with a spectral response from 300 to 1300 nm. A 700 nm cut-off filter reduces the range from 300 to 700 nm to alleviate saturation from high IR sources, such as clouds.
Specialised Imaging
Tring, Hertfordshire, England
www.specialised-imaging.com