Through-Beam Sensor for Harsh Environments
The Omron E3ZM-CT61-M1TJ 0.3M is a through-beam photoelectric sensor — the emitter and receiver are separate units, so the beam is broken when an object passes between them. That design means no reflector to foul or clean, which keeps the machine running reliably in dusty, wet, or corrosive environments like a pulp mill.