Used with plastic and glass fiber optic assemblies, DF-G3 can sense more than 10 ft with opposed mode fibers or more than 3 ft with diffuse mode fibers. Power increases detection reliability for dark targets at long range and enhances detection sensitivity when using specialty fiber assemblies for large area and small part detection applications. Available with 1 or 2 dual discrete outputs, amplifier features dual digital displays that simultaneously show signal level and threshold.