Models from 0 to 1kV through 0 to 75kV, 3.5 inch panel height 18 pounds. The ER Series models are sophisticated, medium power, high voltage power supplies. The “designed in” versatility of this standard product line finds itself at home in most applications/environments. With three control panel configurations…analog, digital or blank…and a full complement of standard remote controls, you might think high price. Not in Glassman’s case, just high quality.