SICK EL3-E2438

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Photoelectric Retro-Reflective Sensor; 3m; Visible Red; NPN; Connector M8; 4Pin
Mfr. Part#: EL3-E2438
Allied Stock#: 70839193

RoHS Compliant Part



Datasheet Datasheet

Pricing (USD) & Availability
Standard Pricing
$52.96 (Each)
1 $52.96
3 $50.31

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Minimum Quantity: 1

Multiples Of: 1


Alternate Mfr Part Number : 1044718
Body Style : Rectangular
Connection Type : M8 4-Pin
Current, Output : 50 mA
Dimensions : 23.8mm x 46.7mm x 33.6mm
Frequency, Switching : 400 Hz (with light/dark ratio 1:1)
Housing Diameter : M18
Includes : Mounting nut M18
IP Rating : IP67
Light Source : LED (Average service life: 100,000 h at TU = +25 °C)
Material, Housing : Glass fiber reinforced ABS plasticplastic
Mounting Type : M18 Threaded
Operating Temperature, Maximum : 50 C
Output : NPN
Power Dissipation : < 20 mA (without load)
Protection Class : III (reference voltage: 50 V DC)
Range, Measurement : 0.1-3 m
Sensing Mode : Retroreflective
Series : ELF3 Series
Special Features : Polarisation filter
Supply Voltage : 10-30 VDC
Switch Style : Dark switching
Type : Retroreflective Sensors
Wavelength, Dominant : 660 nm
Weight : 0.014 kg, 0.03 lbs


The industry-proven ELF-3 family of hybrid photoelectric sensors offers basic functions for presence detection applications. These low-cost sensors provide a variety of features that can be optimized for customers to reduce installation and procurement costs. They are ideal for standard, short-range applications, such as conveyor systems, vending machines, packaging lines, or other simple on/off applications. ASIC (application-specific integrated circuit) technology, which is proprietary to SICK, guarantees the best optical performance. ELF-3 sensors are available in background suppression, energetic and retro-reflective variants. The background suppression variant offers a 50 mm fixed sensing distance. The energetic variant has a 155 mm sensing range and the retro-reflective variant has a 5 m sensing range. A clear back cover provides highly visible power and status indication. These multi-functional sensors are able to integrate optical and electronic elements into different housings. The ELF-3 comes with integrated M18 threads for front and base mounting.


  • Flush Red Lens
  • Polarization Filter
  • Clear Back Cover for Highly Visible Status Indication
  • 18 mm Front and Base Mount
  • Power and Status Indicator

  • Product Added to Cart
    Photoelectric Retro-Reflective Sensor; 3m; Visible Red; NPN; Connector M8; 4Pin
    Allied Stock #: 70839193
    Mfr's Part #: EL3-E2438
    $52.960 Each
    Quantity added: