Through beam sensors

With through beam sensors, the transmitter and receiver are in two separate devices positioned directly opposite each other. The transmitter continuously sends light to the receiver. The receiver switches as soon as the light beam is disconnected by an object. Through beam sensors are more resistant to malfunctioning and offer very high ranges. Read more here

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Through-beam sensors

All items of the category Through-beam sensors :

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Laser through-beam sensor with PA housing
AL007Laser through-beam sensor with PA housing
  • Laser through beam sensor
  • Transmitter (receiver: AL008)
  • M8 connector (4-pin)
  • Sensing range <15 m< i>
  • with IO-Link
93.27
88.14
io Cloudkompatibel Cloud compatible
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Laser through-beam sensor with PA housing
AL008Laser through-beam sensor with PA housing
  • Laser through beam sensor
  • Receiver (transmitter: AL007)
  • M8 connector (4-pin)
  • Sensing range <15 m< i>
  • with IO-Link
58.79
55.56
50+ in stock!
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Through-beam sensor IP69K stainless steel housing
AO003Through-beam sensor IP69K stainless steel housing
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  • Transmitter (receiver: AO004)
  • Sensing range 10 m
  • Red light
  • Stainless steel housing
  • for hygienic & wet zones
46.92
44.34
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Through-beam sensor IP69K stainless steel housing
AO004Through-beam sensor IP69K stainless steel housing
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  • Receiver (transmitter: AO003)
  • Sensing range 10 m
  • Red light
  • Stainless steel housing
  • for hygienic & wet zones
58.67
55.44
50+ in stock!
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Through-beam sensor with PA housing
AO007Through-beam sensor with PA housing
Go to customer reviews(2)
  • Transmitter (receiver: AO008)
  • Sensing range 20 m
  • Red light
  • Protection rating IP67
  • M12 connector (2-pin)
72.39
68.41
43 in stock!
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Through-beam sensor with PA housing
AO008Through-beam sensor with PA housing
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  • Receiver (transmitter: AO007)
  • Sensing range 20 m
  • Red light
  • Protection rating IP67
  • M12 connector (3-pin)
84.84
80.17
49 in stock!
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Through-beam sensor M12x1 metal thread
AO011Through-beam sensor M12x1 metal thread
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  • Transmitter (receiver: AO012)
  • Sensing range 4 m
  • Infrared light
  • Protection rating IP65
  • Metal housing M12 thread
68.44
64.68
50+ in stock!
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Through-beam sensor M12x1 metal thread
AO012Through-beam sensor M12x1 metal thread
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  • Receiver (transmitter: AO011)
  • Sensing range 4 m
  • Infrared light
  • Protection rating IP65
  • Metal housing M12 thread
80.51
76.08
22 in stock!
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Through-beam sensor M18x1 metal thread
AO015Through-beam sensor M18x1 metal thread
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  • Transmitter (receiver: AO016)
  • Sensing range 20 m
  • Red light
  • Protection rating IP67
  • Stainless steel housing M18 thread
53.95
50.98
24 in stock!
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Through-beam sensor M18x1 metal thread
AO016Through-beam sensor M18x1 metal thread
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  • Receiver (transmitter: AO015)
  • Sensing range 20 m
  • Red light
  • Protection rating IP67
  • Stainless steel housing M18 thread
64.89
61.32
41 in stock!
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Mini Through-beam sensor with PA housing
AO022Mini Through-beam sensor with PA housing
Go to customer reviews(4)
  • Transmitter (receiver: AO023)
  • Sensing range <3 m< i>
  • Red light
  • with M8 pigtail 4-pin
44.43
41.99
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19 in stock!
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Mini Through-beam sensor with PA housing
AO023Mini Through-beam sensor with PA housing
Go to customer reviews(4)
  • Receiver (transmitter: AO022)
  • Sensing range <3 m< i>
  • Red light
  • with M8 pigtail 4-pin
51.64
48.80
39 in stock!
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Through-beam sensor with PA housing
AO026Through-beam sensor with PA housing
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  • Receiver (transmitter: AO027)
  • Sensing range 10 m
  • Red light
  • Light-on/dark-on mode programmable
35.75
33.78
29 in stock!
Online -5,5 %
Through-beam sensor with PA housing
AO027Through-beam sensor with PA housing
Go to customer reviews(7)
  • Transmitter (receiver: AO026)
  • Sensing range 10 m
  • Red light
  • Light-on/dark-on mode programmable
29.33
27.72
34 in stock!
Online -5,5 %
Through-beam sensor with PA housing
AO030Through-beam sensor with PA housing
Go to customer reviews(4)
  • Receiver (transmitter: AO031)
  • Sensing range 8 m
  • Red light
  • dark-on mode
34.35
32.46
27 in stock!
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Through-beam sensor with PA housing
AO031Through-beam sensor with PA housing
Go to customer reviews(3)
  • Transmitter (receiver: AO030)
  • Sensing range 8 m
  • Red light
  • dark-on mode
25.18
23.80
100+ in stock!
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Through-beam sensor with PA housing
AO036Through-beam sensor with PA housing
  • Receiver & transmitter
  • Sensing range 12 m
  • Infrared light
  • Light-on/dark-on mode programmable
38.74
36.61
100+ in stock!
Online -5,5 %
Through-beam sensor with PA housing
AO041Through-beam sensor with PA housing
  • Transmitter (receiver: AO042)
  • Sensing range 25 m
  • Red light
  • Protection rating IP67
  • M12 connector (2-pin)
50.34
47.57
100+ in stock!
Online -5,5 %
Through-beam sensor with PA housing
AO042Through-beam sensor with PA housing
  • Receiver (transmitter: AO041)
  • Sensing range 25 m
  • Red light
  • Protection rating IP67
  • M12 connector (4-pin)
46.87
44.29

Through beam sensors: How they work

With through beam sensors, the transmitter and receiver are located in two separate devices which are positioned directly opposite each other. The transmitter continuously sends light to the receiver. The receiver switches as soon as the light beam is disconnected by an object.
 

Properties of through beam sensors

  • Large range as the light goes directly from the transmitter to the receiver and is not reflected, i.e. the light has to travel the path in one direction only.
  • Transmitter and receiver (2 devices) have to be installed and aligned. Exact installation is the precondition for safe and reliable operation.
  • Great range
  • Great excess gain
  • Safe detection of opaque and reflecting objects

 

 

Through beam sensor: Advantages and disadvantages

Through beam sensors are less susceptible to problems than the ones using other measuring principles because the light travels the path in one direction only. This is why ambient influences such as dust and extraneous light can be compensated particularly well and great ranges up to 20 m can be implemented. Transmitter and receiver have to be aligned during installation and require a separate voltage supply each. Installation is therefore slightly more elaborate compared with the other optical systems.