The M870D offers users of Mx7x the choice of distinguishing computed variables, locally or remotely.If used together with Mx7x from Alston Grid, they become the most dependable and practical answer to give quantified or calculated variables. The M870D has a tough aluminum 4-inch circular case that utilize competent, durable and dependable LED display. It gives out high-performance resolution and a continuous 3-line display with 5 digits each line. Furthermore,pre-set units or texts are shown as well. If a parameter is preferred, buttons can be scrolled or set to loop for parameters continuously. It uses DB9 pass-through for effortless settings and download.