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$421.50$421.50 -
Baumer
FHCK 07N6901/KS35A
Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Red LED, Teach-In, 10-30VDC, 60mm Range, NPN, Light/Dark Operate, 100mA, 8 x 16.2 x 10.8 (WHD), Flylead Connector M8 4-Pin 200mm Length, Ambient Temperature: -20 to +50°C, IP65
$442.50$442.50 -
Available Now! 
$293.16$293.16 -
Baumer
FHCK 07P6901/KS35A
Photoelectric Sensor, Rectangular, Diffuse with Background Suppression, MINOS, 10-60mm Sensing Distance, Teach-In, 10-30VDC Voltage Supply, Plastic Housing, IP65
$442.50$442.50 -
Available Now! 
Available Now!Baumer
FHDK 04G6101/KS35A
Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 30mm Tw Range, 11-30VDC, Light Operate Push-Pull, 50mA, 200mm Flylead Connector M8 4-Pin, 44.8 x 4 x 6.2mm (HWD), ASA Housing, PMMA Optics, -10 to +50C, IP65
$280.56$280.56 -
Baumer
FHDK 04G6102
Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 50mm Tw Range, 11-30VDC, Light Operate, Push-Pull, 50mA, 2m 3-Pin Cable, 44.8 x 4 x 6.2mm (HWD), Plastic (ASA) Housing, PMMA Front (Optics), -10 to +50°C, IP65
$402.70$402.70 -
Baumer
FHDK 04G6111
Subminiature Diffuse Sensor, Background Suppression (BGS), Pulsed Point Source LED, 30mm ±2mm Range Tw, 11-30VDC, Dark Operate, Push-Pull, <50mA, 2m 3-Pin Cable, 44.8 x 4 x 6.2mm (HWD), Plastic (ASA) Housing, PMMA Optics, -10 to 50°C, IP65
$402.70$402.70 -
Baumer
FHDK 04G6111/KS35A
Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 30mm Tw Range, 11-30VDC, Dark Operate Push-Pull, 50mA, 200mm Flylead Connector M8 4-Pin, 44.8 x 4 x 6.2mm (HWD), ASA Housing, PMMA Optics, -10 to +50C, IP65
$415.30$415.30 -
Baumer
FHDK 04G6112
Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 50mm Tw Range, 11-30VDC, Dark Operate, Push-Pull, <50mA, 2m 3-Pin Cable, 44.8 x 4 x 6.2mm (HWD), Plastic (ASA) Housing, PMMA Front (Optics), -10 to +50°C, IP65
$402.70$402.70 -
Baumer
FHDK 04G6112/KS35A
Subminiature Diffuse Sensor with Background Suppression (BGS), Pulsed Point Source LED, 50mm Tw Range, 11-30VDC, Dark Operate, Push-Pull, <50mA, 200mm Flylead Connector M8 4-Pin, 44.8 x 4 x 6.2mm (HWD), ASA Housing, PMMA Optics, -10 to +50°C, IP65
$415.30$415.30 -
Baumer
FHDK 07N6901
Subminiature Diffuse Sensor, Background Suppression (BGS), Pulsed Red LED, 10-60mm Tw Sensing Dist., 10-30VDC, Light/Dark Operate, NPN, <100mA, 2m Cable Bottom Side, 16.2 x 8 x 10.8mm (HWD), Plastic Housing, PMMA Optics, -20 to +50°C, IP65
$421.50$421.50 -
Baumer
FHDK 07N6901/KS35A
Subminiature Diffuse Sensor, Background Suppression, Pulsed Red LED, 10-60mm Range Tw, 10-30VDC, Light/Dark Operate, NPN, <100mA, Flylead Connector M8 4-Pin 200mm Length, 16.2 x 8 x 10.8mm (HWD), Plastic Housing, PMMA Optics, -20 to +50°C,
$442.50$442.50
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