Photoelectric sensors

How to choose this product

Photoelectric sensors use a light beam or natural infrared radiation to detect the presence or proximity of objects or individuals. The devices are reflex or through-beam. Some gas detectors and fire-prevention systems use similar systems.

Applications

Photoelectric proximity sensors are used in automated conveyor systems to control material flow and on machine tools. Presence sensors are used for secure access control. Smoke and flame sensors also use photoelectric devices.

Technologies

Photoelectric proximity sensors use a light beam. Reflective systems detect objects that reflect emitted light, while through-beam systems detect objects that break the beam bounced off a reflector.

Reflex systems with polarized light and a depolarizing reflector are available; detection is more precise, especially for reflective objects. The surfaces are generally non-polarizing, except for some plastics.

Passive photoelectric presence sensors detect the infrared rays emitted by a person. Active models are through-beam.

Smoke sensors are sensitive to the reflective effects of smoke. Flame sensors detect infrared radiation. Laser and infrared gas sensors use the optical absorption properties of the gas.

How to choose

Choice of a photoelectric detector depends on required range and sensitivity in the given work environment.

Advantages

- No-contact detection

113 companies | 1096 industrial products

Companies per page

MAVILI ELEKTRONIK AS MG-9100
Photoelectric smoke detector MG-9100 MAVILI ELEKTRONIK AS

MG-9XXX series intelligent analogue addressable fire detectors Intelligent analogue addressable fire detectors, offering high performance by the VIP communication protocol, provide...

6 products Smartscan
Smartscan 0.5 - 6 m | T4 series
Safety light curtain 0.5 - 6 m | T4 series Smartscan

The Smartscan T4 series safety light curtain is designed for use in ’High Risk’ machine safety applications such as press brakes, presses, robotic work cells, guillotines, wood working machines, metal...

Smartscan 0.5 - 40 m | 8000 series
Safety light curtain type 2 0.5 - 40 m | 8000 series Smartscan

The 8000 Series safety light guard comprises of the Transmitter (Tx) and the Receiver (Rx) units with optional bolt on mute modules. An interface cable connects the Transmitter to the Receiver unit and...

Smartscan 0.5 - 10 m | 8000 plus series
Multiple-beam safety light barrier 0.5 - 10 m | 8000 plus series Smartscan

The 8000 Plus Series comprises of the Transmitter (Tx) and the Receiver (Rx) units with optional bolt on mute modules. An interface cable connects the Transmitter to the Receiver unit and the User cable...

Smartscan 0.5 - 40 m | 5K8 series
Safety light curtain type 2: body protection 0.5 - 40 m | 5K8 series Smartscan

The 5K8 series replaces the original Smartscan 5000AP series safety light curtain. The 5K8 series has been designed to make replacement of your old 5000AP series safety light curtain very straight forward....

Smartscan 0.2 - 3 m | M series
Light curtain 0.2 - 3 m | M series Smartscan

M series non-safety light curtains provide a cost effective slim line housing for for a variety of Industrial and Commercial sensing applications where space to fit the...

Smartscan 0.5 - 7 m | N series
Automation light curtain 0.5 - 7 m | N series Smartscan

The N Series comprises of the Transmitter (Tx) and the Receiver (Rx) units providing 1 x electronic PNP output and 1 x electronic NPN output....

Fiessler Elektronik 100 - 1900 mm, 4.5 - 24.5 ms | ULVT , IP65/67
Safety light curtain 100 - 1900 mm, 4.5 - 24.5 ms | ULVT , IP65/67 Fiessler Elektronik

The safety light curtains ULVT consist of the two components: transmitter and receiver. The distance between both components and the overall height result in those protection width and - height. By...

Fiessler Elektronik 100 - 1500 mm | ULCT
Safety light curtain type 4: hand protection 100 - 1500 mm | ULCT Fiessler Elektronik

The light correspond to the highest safety regulations. - Safety category 4 (EN 954-1 und IEC 61496 Part1 +Part2 or EN 61496) - deployable to 3 (EN 61508) - Performance Level PL e (ISO 13849-1)...

Fiessler Elektronik 100 - 2500 mm, 5 - 25 ms | BLVT , IP65
Safety light curtain type 4: body protection 100 - 2500 mm, 5 - 25 ms | BLVT , IP65 Fiessler Elektronik

The safety light curtains BLVT designed especially for their use as protection devices at hazardous sites and areas, as well as pedestrian access. By the...

Fiessler Elektronik 100 - 1500 mm, 4 - 29 ms | BLTC, EN 61508, ISO 13849-1
Safety light curtain 100 - 1500 mm, 4 - 29 ms | BLTC, EN 61508, ISO 13849-1 Fiessler Elektronik

Areas of application: * Presses for metal, wood, plastic, rubber, leather...

Fiessler Elektronik 100 - 1900 mm, 5 - 25 ms | TLVT, EN 61496, IP65
Safety light curtain type 2: finger protection 100 - 1900 mm, 5 - 25 ms | TLVT, EN 61496, IP65 Fiessler Elektronik

The safety light curtains TLVT are electrosensitive protective devices (EPSE) and are characterized by compliance with safety category 2, IEC 61496 parts 1 + 2 i.e. EN 61496 parts 1 + 2. * integrated...

Fiessler Elektronik 4 - 29 ms | TLCT, EN 61508, IP65
Safety light curtain type 2 4 - 29 ms | TLCT, EN 61508, IP65 Fiessler Elektronik

The light correspond to the following safety regulations. - Safety category 2 (EN 954-1 und IEC 61496 Part1 +Part2 bzw. EN 61496) - deployable to SIL 1 (EN 61508) - Performance Level PL c (ISO 13849-1)...

video RHEINTACHO Messtechnik GmbH max. 99 999 rpm, max 600 mm | Redpoint
Digital hand held photoelectric tachometer max. 99 999 rpm, max 600 mm | Redpoint RHEINTACHO Messtechnik GmbH

The redpoint hand-held digital tachometer is a compact measuring unit for proximity measurement...

5 products Microsistemi
Microsistemi 10 - 30 V, 2375 mm | CC series
Safety light curtain 10 - 30 V, 2375 mm | CC series Microsistemi

Description MULTI-BEAM BARRIER FOR INDUSTRIAL USE CC SERIES * Stout aluminium black draft with IP54 degree of protection available in different lengths that allows a protection from 25...

Microsistemi 10 X 33 X 1856 mm, 10 A | CL-1699
Safety light curtain 10 X 33 X 1856 mm, 10 A | CL-1699 Microsistemi

Description Multi-beam optic barriers series to protect lift doors and lifting platforms * 84 criss cross beams with automatic test * High immunity against the light and electromagnetic interferences...

Microsistemi 10 X 33 X 1856 mm, 10 A | CL-3299
Safety light curtain 10 X 33 X 1856 mm, 10 A | CL-3299 Microsistemi

Description Multi-beam optic barriers series to protect lift doors and lifting platforms * 154 criss cross beams with automatic test * High immunity against the light and electromagnetic interferences...

Microsistemi 10 X 25 X 2000 mm | EL-674E
Light curtain 10 X 25 X 2000 mm | EL-674E Microsistemi

Description Multi-beam optic barriers series to protect lift doors and lifting platforms * Beam interruption buzzer excludable * Dimensions: 10 x 25 x 2000 mm * Cables length: 4 meters...

Microsistemi 12 - 220 V, 2 A | EL-974E
Light curtain 12 - 220 V, 2 A | EL-974E Microsistemi

Description Multi-beam optic barriers series to protect lift doors and lifting platforms * Beam interruption buzzer excludable * Dimensions: 10 x 25 x 2000 mm * Cables length: 4 meters...

1 products ID&T GmbH
ID&T GmbH max. 100 m | IDT LL series
Single-beam safety light barrier max. 100 m | IDT LL series ID&T GmbH

Light Barriers The IDT light barriers can be easily installed on any type of machinery as an extra safety measure, to help protect the workers from getting too close to moving...

TECNOALARM FRANCE 1.425 - 3.060 mm | BEAMTOWER series
Multiple-beam safety light barrier 1.425 - 3.060 mm | BEAMTOWER series TECNOALARM FRANCE

BEAMTOWER barriers are the latest and most advanced systems developed by TECNOALARM to protect outdoor areas. Each column is composed of a series of "Modbeam" modules which vary in number from 2 to 4...

EDWARDS SIGNALING 500 / TS7 (700) series
Photoelectric smoke detector 500 / TS7 (700) series EDWARDS SIGNALING

The Edwards 500 and TS7 (700) series of conventional smoke detectors are 24Vdc photoelectric smoke detectors designed to be connected to UL compatible fire alarm panels,...

EDWARDS SIGNALING SD series
Photoelectric smoke detector SD series EDWARDS SIGNALING

The SuperDuct SD Series duct detectors offers the convenience of modular design plus the power of advanced sensing technology. Available in a two wire version or a four wire version with separate controllers...

1 products OPTEX Entrance
OPTEX Entrance OS-12C
Single-beam safety light barrier OS-12C OPTEX Entrance

Automatic adjustment to optimum sensitivity Pressing the sensitivity adjustment button for one second sets the sensitivity to the optimum value. Self diagnosis...

Hochiki America Corporation ALG-V
Photoelectric smoke detector ALG-V Hochiki America Corporation

STANDARD FEATURES Built-in optical fire test feature Uses the noise immune Digital Communication...

8 products Hochiki Europe
Hochiki Europe ALG-EN
Photoelectric smoke detector ALG-EN Hochiki Europe

Model ALG-EN is a Photoelectric Smoke Sensor, which is fully compatible with Hochiki’s ESP Analogue Addressable Protocol. The ALG-EN is available in ivory, white or black, the black version (with matching...

Hochiki Europe ALG-EN(BLK)
Analog photoelectric smoke detector ALG-EN(BLK) Hochiki Europe

Model ALG-EN(BLK) is a Photoelectric Smoke Sensor, which is fully compatible with Hochiki’s ESP Analogue Addressable Protocol. This black version of the ALG-EN (with matching black base YBN-R/3(BLK))...

Hochiki Europe ALG-EN(WHT)
Analog photoelectric smoke detector ALG-EN(WHT) Hochiki Europe

Model ALG-EN(WHT) is a Photoelectric Smoke Sensor, which is fully compatible with Hochiki’s ESP Analogue Addressable Protocol. The ALG-EN(WHT) incorporates Hochiki’s...

Hochiki Europe ALG-ENM
Marine photoelectric smoke detector ALG-ENM Hochiki Europe

Model ALG-ENM is a Marine Approved Photoelectric Smoke Sensor, which is fully compatible with Hochiki’s ESP Analogue Addressable Protocol. The ALG-ENM incorporates...

Hochiki Europe SLR-E3N
Photoelectric smoke detector SLR-E3N Hochiki Europe

The SLR-E3N is a Photoelectric Smoke Detector, which is fully compatible with the majority of existing Conventional systems. The SLR-E3N...

Hochiki Europe SLR-E3N(BLK)
Photoelectric smoke detector SLR-E3N(BLK) Hochiki Europe

The SLR-E3N(BLK) is a Photoelectric Smoke Detector, which is fully compatible with the majority of existing Conventional systems. The...

1 products Notifier
Rosslare Security Products AS-34
Wireless photoelectric smoke detector AS-34 Rosslare Security Products

AS-34 is part of Rosslare’s family of powerful, high performance, indoor, standalone or wireless smoke and heat detectors, ideal for residential, commercial, and institutional applications. This optical...

NIETZSCHE ENTERPRISE CO., LTD. WZB-SSM703
Wireless photoelectric smoke detector WZB-SSM703 NIETZSCHE ENTERPRISE CO., LTD.

Independent Photoelectric Smoke detector by battery Dimension : Φ107*35mm Input voltage: DC9V battery (regular) Static current:≤20uA Alarm...

1 products Senstronic
Senstronic
Photoelectric proximity switch Senstronic

Function Detection of all types of object, whatever the distance. Areas of use Automated equipment,...

9 products STI
STI
Safety light curtain STI

Omron Scientific Technologies, Inc. provides seven safety light curtain families to solve your...

STI F3SJ-A
Safety light curtain type 4 F3SJ-A STI

Safety category 4 Meets Standards International standards: IEC61496-1, IEC61496-2, IEC61508 1998 (SIL3) EU legislation EN standards: Machinery...

new STI F3SJ-E
Safety light curtain type 4 F3SJ-E STI

Fast and easy installation Resolution: 25 mm (1.01...

STI max. 15 m | MP2100
Safety light curtain type 2 max. 15 m | MP2100 STI

Resolution: 30 mm (1.18 in.) Range: 15 m (49 ft.) Protective heights:...

STI 10 m |  F3SH-A
Light curtain for perimeter protection of sensitive sites 10 m | F3SH-A STI

Can be front-mounted, top-mounted or back-mounted in series Detection capability for finger protection (14 mm), hand protection (25 mm), horizontal...

STI 60 m | BeamSafe® II
Single-beam safety light barrier 60 m | BeamSafe® II STI

60 m (200 ft.) range Four possible transmit codes eliminate crosstalk from multiple units in the same area Signal strength indicator and integral "Gun...

Idem Safety Switches
Safety light curtain Idem Safety Switches

Safety Light Curtains - Type SLC SLC-F Finger 14mm resolution SLC-H...

Idem Safety Switches
Safety light curtain type 2 Idem Safety Switches

Safety Light Curtains - Type SLCS SLCS-F Finger 14mm resolution SLCS-H...

Idem Safety Switches
Safety light curtain type 4 Idem Safety Switches

Safety Light Grids - Types SLGC and SLGM Suitable for pedestrian access Rugged...

3 products Tapeswitch
Tapeswitch 15 m | B series
Safety light curtain type 4 15 m | B series Tapeswitch

Tapeswitch B-Series Safety Light Curtains are full-featured, microprocessor-controlled units designed for optical guarding applications. These photoelectric barriers are suitable for high-risk automation...

Tapeswitch max. 30 m | B series
Light curtain for perimeter protection of sensitive sites max. 30 m | B series Tapeswitch

Tapeswitch Type B2, B3, & B4 Perimeter Access Guarding Systems are designed for safety and security applications. These photoelectric devices use light curtain technology but...

Tapeswitch IP 65
Light curtain for harsh environments IP 65 Tapeswitch

The Hard-Guard Light Curtain is designed for harsh industrial applications. It is available in either a tough transparent acrylic housing or a rugged aluminum enclosure....

10 products ReeR U.S.A.
ReeR U.S.A. max. 20 m, 24 V | EOS4
Safety light curtain type 4: finger protection max. 20 m, 24 V | EOS4 ReeR U.S.A.

TYPE 4 INTEGRATED AND COMPACT SAFETY LIGHT CURTAIN Compact, Type 4 - SIL 3 and SILCL 3 - PL e Light Curtain. EOS4, with its small-size housing and minimum dead...

ReeR U.S.A. 6 - 8 m, 24 V | ADMIRAL AD
Safety light curtain type 4 6 - 8 m, 24 V | ADMIRAL AD ReeR U.S.A.

PTOELECTRONIC SAFETY BARRIERS TYPE 4 Optoelectronic Safety Barrier for the protection of workers exposed to risks...

video ReeR U.S.A.
Light curtain for perimeter protection of sensitive sites ReeR U.S.A.

OPTOELECTRONIC SAFETY BARRIERS TYPE 4 Optoelectronic Safety Barrier for the protection of workers exposed to risks arising from the use of dangerous machines, in situation where the MUTING function is...

video ReeR U.S.A. 6 m, 24 V | JANUS J TRX
Retro reflective light curtain 6 m, 24 V | JANUS J TRX ReeR U.S.A.

TYPE 4 SAFETY LIGHT GRID WITH RETRO-REFLECTOR Type 4 safety light grid for access...

ReeR U.S.A. 4 - 12 m, 24 V |
Safety light curtain type 2: hand protection 4 - 12 m, 24 V | ReeR U.S.A.

Compact, Type 2 - SIL 2 and SILCL 2 - PL d Light Curtain. EOS2, with its small-size housing and minimum dead zone, is ideal for the protection of tool machines, in particular where space restrictions...

ReeR U.S.A. 6 - 16 m | VISION V
Safety light curtain type 2 6 - 16 m | VISION V ReeR U.S.A.

OPTOELECTRONIC SAFETY BARRIER TYPE 2 Type 2 optoelectronic Safety Barrier for the protection of workers exposed to risks arising from the use of dangerous machines.The Safety Barrier Vision, with its...

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Associated Terms

optoelectronic sensors, photoelectric detectors, optoelectronic transducers, photoelectric transducers, photoelectric converters

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