SICK WL24-2B440 Photoelectric Sensor

USD 241.04

Rugged retro-reflective sensor with 22m range, dual-lens optics, IP69K zinc die-cast housing, and integrated front screen heating for extreme environments.

SKU SICK-1017879 Category
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SICK WL24-2B440 Photoelectric Sensor

Model Identifier WL24-2B440
Official Part Number 1017879
GTIN Standard 4047084122125

Technical Overview

Rugged retro-reflective sensor with 22m range, dual-lens optics, IP69K zinc die-cast housing, and integrated front screen heating for extreme environments.

Key Features

  • Extended sensing range up to 22 meters utilizing a dual-lens retro-reflective system.
  • IP69K-rated rugged zinc die-cast metal housing designed for heavy-duty and harsh industrial washdowns.
  • Integrated permanent front screen heating prevents condensation and ice buildup in deep-freeze environments.
  • Highly flexible configuration with adjustable light/dark switching and selectable NPN/PNP outputs.
  • Rapid operational capability with a fast response time of ≤ 500 µs and a 1,000 Hz switching frequency.
  • Standardized industrial male M12, 4-pin connector for robust and quick installation.

Integrated permanent front screen heating combined with an IP69K-rated zinc die-cast housing for maximum reliability and faultless detection in cold, wet, and harsh environments.

Technical Specification Matrix

ParameterValue
Sensing Range0 m to 22 m
Sensor PrinciplePhotoelectric retro-reflective sensor (Dual lens system)
Light SourceLED (Visible red light, 660 nm)
Supply Voltage10 V DC to 30 V DC
Switching OutputNPN, PNP (Selectable)
Switching ModeLight/dark switching
Switching Frequency1000 Hz
Response Time≤ 500 µs
Connection TypeMale connector M12, 4-pin
Enclosure RatingIP69K
Operating Temperature-40 °C to +60 °C
Housing MaterialMetal, Zinc diecast
Front Screen HeatingYes (Permanent)
Physical Weight (kg)0.33
Dimensions L x W x H (cm)6.5 x 2.7 x 8.75

Industrial Applications

1. Cold Storage Conveyor Pallet Detection

Accurately detecting the presence of pallets on automated conveying systems in large deep-freeze warehouses.

Problem Solved

Eliminates false readings caused by lens icing or condensation through the use of integrated permanent front screen heating and extreme -40°C operating temperature ratings.

Front screen heatingIP69K-40°C temperatureRetro-reflectiveDual-lens

2. Food & Beverage High-Pressure Washdown Zones

Continuous product presence detection in intensive, highly sanitary zones of food and beverage processing facilities.

Problem Solved

The ultra-rugged zinc die-cast housing and IP69K enclosure rating completely prevent water ingress and hardware failures during extreme daily high-temperature, high-pressure sanitation procedures.

IP69KZinc die-cast housingWashdownPMMA optics10-30 V DC

3. Long-Range Automated Guided Vehicle (AGV) Tracking

Wide-area vehicle or load presence verification in heavy-duty distribution centers, warehouses, and automated transport zones.

Problem Solved

Reliably spans massive industrial gaps with an extended 22-meter maximum sensing range while retaining absolute signal stability via precise dual-lens optics.

22 m sensing rangeDual-lens system1000 Hz frequencyNPN/PNP outputVisible red LED
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