650 mill, lathe, general applications 660 mill applications  The Gold Standard is the most affordable DRO system with advanced features that are normally found on more expensive systems. Capabilities include: machine error compensation absolute/incremental diameter/radius inch/mm non-volatile memory fine/coarse optional RS232 made in USA The Prospector offers all of the capabilities of the Gold Standard systems plus: bolt-hole and line hole programming center calculation function polar and Cartesian coordinate system "online" help The Prospector is simple to use and offers an outstanding value for milling applications. Specifications for Gold Standard [650 series] and Prospector [660 series] DROs: number of axes 1, 2, or 3 units of measurement mm, inch memory non-volatile RAM display high efficiency LEDs display modes diameter/radius power requirement 120 V~, 60 Hz (optional 220 V~, 50 Hz) input signals 5 V TTL compatible quadrature square waves reference systems absolute/incremental resolutions 1 µm (0.00005 inch), 2 µm (0.0001 inch), 5 µm (0.0002 inch), 10 µm (0.0005 inch) setups via keypad machine error compensation dimensions 257 x 159 mm (10.125 x 6.25 inch)