Our offices will be closed on Monday, May 28th in observance of Memorial Day
FedEx shipped orders placed before 6:00PM ET on Friday, May 25th will ship same day (if paid for by Credit Card or PO account in good standing & based on product availability). Orders placed after the Friday cutoff will ship on Tuesday, May 29th. Please see our Business Policies for earlier shipping cutoff times for drop-shipped items and shipping by other carriers.
DC-powered rectangular photoelectric sensors detect presence several ways: diffuse (light reflects from the target object back to the sensor), retroreflective (object interrupts light rebounding off a fixed reflector), or through-beam (object obstructs light traveling from an emitter to a receiver). Available models offer a variety of sensing ranges and connection styles.