The Keyence PX-H71G Transmissive Sensor Head is a high-performance thrubeam sensor designed to provide accurate and stable detection in the most demanding industrial environments. This model, part of the PX series, features an M8 armored design that ensures both long-lasting durability and superior resistance to environmental challenges.

One of its most significant strengths is its exceptional long-range detection capability. The PX-H71G provides multiple selectable operating ranges, from 4 meters in TURBO mode to an impressive 20 meters in MEGA mode. This flexibility allows operators to configure the sensor for specific application requirements, ensuring optimal performance whether detecting objects at close range or across extended distances. Even small opaque targets with a diameter of just 4 mm can be reliably detected, highlighting the sensor’s sensitivity and precision.

At its core, the PX-H71G utilizes a 635 nm visible red LED with a 4-element configuration, which enhances detection stability and provides consistent performance across varying ambient conditions. This powerful light source makes alignment and verification easier, ensuring fast setup and reliable operation in production lines, material handling systems, and harsh industrial environments.

The environmental resistance of the PX-H71G is a defining feature. Certified to IEC IP68, JEM IP68g, and DIN IP69K standards, along with compliance to NEMA 4X, 6P, and 13, the sensor is resistant to dust ingress, high-pressure washdowns, and submersion. It maintains reliable operation under ambient light levels up to 30,000 lux in sunlight and 20,000 lux from incandescent sources, ensuring uninterrupted functionality even in brightly lit facilities. Its operating temperature range of -10 to +55 °C and tolerance to 35–85% humidity further reinforce its adaptability in diverse industrial environments.

Durability is strengthened by the stainless-steel SUS303 housing with PMP and POM reinforced plastic parts, paired with a BK7 optical lens for resilience against wear and impact. Accessories, including SUS303 screw nuts and SUS304 toothed washers, provide secure mounting. Furthermore, the PX-H71G withstands vibration at 10 to 55 Hz with 1.5 mm double amplitude and shock resistance up to 500 m/s², ensuring stable performance even under continuous mechanical stress.

Weighing approximately 250 g including its cable, the PX-H71G combines robustness with practical integration into existing systems. Its armored construction and rugged specifications make it particularly suitable for industries such as automotive, food and beverage, packaging, and heavy machinery, where consistent detection and resistance to harsh cleaning or environmental conditions are essential.

In summary, the Keyence PX-H71G offers a perfect blend of long-range detection, advanced LED technology, rugged durability, and superior environmental protection, making it an indispensable sensor for applications that demand reliability and accuracy in challenging industrial settings.