QM series retroreflective photoeyes detect presence when an object interrupts emitted light rebounding off a fixed reflector (sold separately). Using visible red or infrared light, these DC-powered rectangular sensors, optimized for transparent objects, offer adjustable detection ranges up to 4m, and are available with integral 2m pigtail cable or quick-disconnect.
There are many different styles of photoelectric sensors, but really only four basic technologies: through-beam, reflective, diffuse, and background suppression. The categories of these types of DC photoelectric sensors available from AutomationDirect are:
DC Mini-Rectangular Plastic
QM Series photoelectric sensors start at
$38.00
(QMRB-0N-0A)
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