The NP48, NP72, NP80B, and NP96 Series square instruments feature an electromagnetic design with a robust, rejection-resistant structure. Each instrument comprises a precise measuring mechanism and an advanced indication device, housed in a fire-resistant ABS plastic enclosure for enhanced safety. Designed for efficiency, they include secure measuring terminals and a high-performance wiring system. Additionally, the printed dial plate and crystal glass cover provide a refined, professional appearance, ensuring both functionality and aesthetic appeal.