The SM2A312FVQD is a fiber optic amplifier with a mini-beam design, featuring a 650 nm visible red light source and glass fiber optic components. It operates with an input voltage range of 24-240 VAC and provides a SPST solid-state 2-wire output. The sensor includes a quick-disconnect connector, has an IP67 rating, and utilizes a 3-pin configuration (model 35549). Detection range varies depending on the fiber optic cable used.