The ZM301 indicator features the latest technological advancement for highly visible displays. The high contrast, nine segment IBN display technology provides excellent color contrast and enhanced viewing angles, reducing operator error and improving productivity. The ZM301 captures values at an astounding rate of 80 times per second and is available in a variety of enclosures to suit your operating environment. Protective aluminum enclosure for office environments. A robust IP69K certified stainless steel enclosure for harsh indoor or outdoor use or a stainless steel panel mount design for control room applications.