The NTM-4 is our tallest meter currently available. Industry standard housing 1.4"W x 11.35”H x 2.8"D available in plastic or metal. This single channel unit is available in loop (4-20mA), A.C. signal or external power to replace fit, form and function any analog or digital panel meter. Our Powerless (loop/signal) versions only consume <60mW, comparable to an analog meter! The external power series features over 30 signal conditioners.