Analog convection gauge indicator includes includes: Large analog meter calibrated from 1 milliTorr to atmosphere, 760 Torr. 1/4 DIN enclosure with jack screws for panel mounting. Standard power 95 to 125 VAC 50/60 Hz, 220 VAC optional at no extra cost. Built to CSA standards. All cables are included but gauge tube is not. Use any of the angle or inline style convection gauge tubes.