- Functional principle: Photoelectric proximity sensor
- Functional principle detail: Background suppression
- Dimensions (W x H x D): 16.2 mm x 48.5 mm x 31.8 mm
- Housing design (light emission): Hybrid
- Thread diameter (housing): M18
- Mounting system type: M18, head/side (24.1 … 25.4 mm)
- Ultra-long sensing range with visible red LED: Detects objects from 50 mm up to 25 m, ideal for long-distance detection in industrial automation environments.
Free Shipping: $50+ U.S. orders | $350+ International orders
12-Month Warranty
Hassle-Free Returns Within 30 days
Over 100,000 parts in stock
- Brand: Sick
Sick 1085701 Photoelectric proximity sensor
Mfr # 1085701
$220.38
/ea
Availability: Available to Order|Typically ships within 7 to 10 business days. Lead time may vary based on supplier availability.
- Free shipping on U.S. orders over $50 and international orders over $350.
- Hassle-Free 30-Day Returns.
- 12-Month Warranty for all products.
- Get 10% off—join our email list.
Accepted Payments
- Ultra-long sensing range with visible red LED: Detects objects from 50 mm up to 25 m, ideal for long-distance detection in industrial automation environments.
- PinPoint visible red LED with signal strength feedback: Enables precise alignment and real-time monitoring during installation for enhanced setup accuracy.
- Dual NPN outputs with light-on/dark-on switching: Provides versatile integration into various control systems and configurable detection logic.
- Rugged cylindrical M18 housing with IP67/IP69K protection: Designed to withstand harsh industrial conditions, including dust, water jets, and mechanical impacts.
The SICK HTB18L-H4A5BB (part number 1085701) is a high-performance retro-reflective photoelectric sensor designed to deliver reliable long-range object detection in demanding industrial environments. As part of the HTB18L series, it combines advanced optical technology with a robust mechanical design to ensure consistent performance across a variety of automation applications.
One of the key strengths of the HTB18L-H4A5BB is its ultra-long sensing range, capable of detecting objects from 50 mm up to 25 m when used with a suitable reflector. This wide detection range makes it highly suitable for applications such as conveyor monitoring, packaging systems, material handling, and warehouse logistics. The retro-reflective detection principle ensures stable detection performance even with highly reflective, dark, or irregularly shaped objects, providing reliable operation across diverse industrial environments.
The sensor features a PinPoint visible red LED emitter, which produces a focused and clearly visible light spot. The integrated signal strength feedback provides real-time visual guidance during installation, allowing operators to optimize the sensor’s position quickly and accurately. This feature reduces setup time, improves alignment accuracy, and ensures consistent detection across the sensor’s full range.
Electrically, the HTB18L-H4A5BB is equipped with dual NPN outputs supporting light-on and dark-on switching modes, allowing flexible integration into different control systems. The dual-output configuration enables customization of detection logic to meet the specific needs of various applications. In addition, the sensor incorporates standard protective features, including reverse polarity, short-circuit, and overload protection, ensuring reliable and long-lasting operation.
Mechanically, the sensor is housed in a robust M18 cylindrical body with IP67/IP69K ratings, offering protection against dust, water ingress, and mechanical impact. Its durable construction ensures reliable operation in challenging industrial settings, including manufacturing floors, food processing plants, and robotic automation systems. The compact and sturdy design also allows installation in tight spaces or standard mounting configurations without compromising durability.
Performance-wise, the HTB18L-H4A5BB offers a fast response time of under 1 ms, making it suitable for high-speed production lines and automated machinery where rapid and accurate detection is essential. Its wide operating voltage range and efficient power consumption allow seamless integration with industrial control systems while maintaining dependable performance over time.
In summary, the HTB18L-H4A5BB combines long-range detection, precise LED alignment, dual-output flexibility, and rugged industrial durability, making it an excellent choice for engineers and automation professionals seeking high-performance sensing solutions for material handling, packaging, and robotic applications.
Product Specifications
| Manufacturer | Sick |
|---|
We’re Always Ready to Assist You
Submit A Request
Reach us through our form.
Give Us A Call
Connect with a representative.
Live Chat
Chat live with our support team.

Reviews
There are no reviews yet.