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Baumer
O500.TR-ZZZZ.72CU
Thru-Beam Sensor, Emitter, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range, Pulsed Red LED, 645 nm, 2m 4-Pin Cable, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67
$106.60$106.60 -
Baumer
O500.TR-ZZZZ.72O
Thru-Beam Sensor, Emitter, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range, Pulsed Red LED, 645 nm, M12 4-Pin Connector, Plastic Housing, PMMA Front (Optics), 45 x 18 x 32mm (HWD), -25 to 60°C Operating Temperature, IP67
$89.69$89.69 -
Baumer
O500H.ER-GW1B.PVCV
Thru-Beam Sensor, Receiver, Hygienic Design, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range Sn, Push-Pull, Teach-In: Remote, Light/Dark Operate, 2m 4-Pin Cable, Plastic Housing, PMMA Optics, 45 x 18 x 32mm) HWD), -25 to 60°C Operating
$289.40$289.40 -
Baumer
O500H.ER-GW1B.PVOV
Thru-Beam Sensor, Receiver, Hygienic Design, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range Sn, Push-Pull, Teach-In: Remote, Light/Dark Operate, M12 Flylead Connector (200mm Lenggth), Plastic Housing, PMMA Optics, 45 x 18 x 32mm) HWD),
$302.20$302.20 -
Baumer
O500H.TR-ZZZZ.PVCV
Thru-Beam Sensor, Emitter, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range Sn, Pulsed Red LED, 645 nm, 2m 4-Pin Cable, Stainless Steel Housing, PMMA Optics, 47.7 x 20.2 x 36.4mm (HWD), -25 to +60°C Operating Temp., IP68/69K & proTect+
$271.69$271.69 -
Baumer
O500H.TR-ZZZZ.PVOV
Thru-Beam Sensor, Emitter, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range Sn, Pulsed Red LED, 645 nm, M12 Flylead Connector (200mm Length), Stainless Steel Housing, PMMA Optics, 47.7 x 20.2 x 36.4mm (HWD), -25 to +60°C Operating Temper
$289.40$289.40 -
Baumer
O500W.ER-GW1B.PVO
Thru-Beam Sensor, Receiver, Washdown Design, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range, Push-Pull, qteach/Remote, Light/Dark Operate, M12 4-Pin Connector, Stainless Steel Housing, PMMA Optics, 47.2 x 20.2 x 37.7mm (HWD), -25 to 60
$212.20$212.20 -
Baumer
O500W.TR-ZZZZ.PVN
Thru-Beam Sensor, Emitter, Washdown Design, 10-30VDC, 25m Actual Range Sb, 40m Nominal Range Sn, Pulsed Red LED, 645 nm, M12 4-Pin Connector, Stainless Steel Housing, PMMA Optics, 47.2 x 20.2 x 37.7mm (HWD), -25 to +60°C Operating Temper
$197.69$197.69 -
Carlo Gavazzi
PA18CAT20
Photoelectric, Thru-Beam, M18 Axial, 10-30VDC, 20m Range, Emitter, 2m Cable, IP67, 69K
$53.78$53.78 -
Carlo Gavazzi
PA18CAT20M1
Photoelectric, Thru-Beam, M18 Axial, 10-30VDC, 20m Range, Emitter, M12 Plug, IP67, 69K
$50.45$50.45 -
Carlo Gavazzi
PA18CAT20NAM1SA
Photoelectric, Thru-Beam, M18 Axial, 10-30VDC, 20m Range, NPN NO/NC, M12 Plug, IP67
$80.14$80.14 -
Carlo Gavazzi
PA18CAT20PAM1SA
Photoelectric, Thru-Beam, M18 Axial, 10-30VDC, 20m Range, PNP NO/NC, M12 Plug, IP67
$80.14$80.14
Photoelectric sensors detect the distance, absence or presence of an object. These sensors are great for sensing long distances and detecting most materials.
How Does a Photoelectric Sensor Work?
Generally a photoelectric sensor consists of the following:
- Transmitter - emits the light beam
- Receiver - detects the light beam and converts it to an electrical signal
Photoelectric sensors detect changes in the light beam caused by the presence/absence, movement or properties of an object.
Types of Photoelectric Sensors:
- Through-Beam (Thru-Beam)
- Transmitter and receiver are two separate units that are directly opposite of each other. The sensor detects when an objects breaks the light beam
- Great for long distance detection
- Ideal for conveyors, counting or monitoring door openings
- Retroreflective (Reflective Mode)
- Transmitter and receiver are in one housing; light beam is reflected back by a reflector. Detection is triggered when an object breaks the beam.
- Medium range detection and easier to install than a through beam
- Ideal for package detection and pallet positioning
- Diffuse (Proximity Mode)
- The transmitter and receiver in one housing; the sensor detects light reflected directly off the target object (no reflector needed)
- Best for short range applications
- Ideal for detecting objects on assembly lines, verifying presence or checking fill level
- Specialized Types:
- Background Suppression: Can ignore objects beyond a set distance, focuses close range
- Color or Contrast Sensors: Detects specific colors or contrast differences
- Distance Measuring Sensors: Mesaure the distance to an object
Categories Related to Photoelectric Sensors:
- Stack lights - signal towers visually communicate the data or alerts that the photoelectric sensors are generating
- Smart relays - photoelectric sensors provide input signals which can process the data and control outputs
- Pushbuttons and estops - if your sensor detects a fault, an operator can use a pushbutton to reset the system
- HMIs - HMIs can dispay the data from the photoelectric sensor which allows you to monitor processes