Available. The Keyence LK-H157 is a high-speed, high-accuracy laser displacement sensor designed for precise measurement applications in industrial settings. This sensor head features a wide-type design and operates as a Laser Class 2 device, ensuring safety and reliability. It utilizes a red semiconductor laser with a wavelength of 655 nm, providing accurate and consistent measurements. The LK-H157 offers a reference distance of 150 mm for diffuse reflective mode and 147.5 mm for specular reflective mode, with a measuring range of ±40 mm and -39.5 mm to +24.4 mm, respectively. Its spot diameter at the standard distance is 120 µm x 4,200 µm, allowing for detailed and precise measurements. The sensor boasts a linearity of ±0.02% of full scale (F.S.) and a repeatability of 0.25 µm, ensuring high precision in measurements. It supports selectable sampling cycles ranging from 2.55 µs to 1,000 µs, accommodating various application requirements. The LK-H157 is built to withstand industrial environments with an IP67 enclosure rating, indicating resistance to dust and water ingress. It operates effectively in ambient temperatures ranging from 0 to +50 °C and can handle ambient light conditions up to 5,000 lux. The sensor is constructed with an aluminum die-cast material, providing durability and stability in demanding industrial applications.