These light bands offer high repeat accuracy and are available in eight lengths, from 10 to 300 mm. With their compact design, they can be integrated into tight mounting spaces. They offer a usable working distance of 10 to 500 mm, and five of the group use a higher than standard infrared range of 950 nm. This wavelength allows them to provide five times better absorption characteristics, meaning they can easily detect water and water-based liquids than can be difficult to detect with a standard visible light sensor. They are available with analog, switching and dynamic amplifiers.