Zero adjustable from 0 to porm 100 millivolts, chart speeds 3/4, 1-1/2, 3, 6 and 12 in. Per hour and per minute 3/4, 1-1/2, 3 and 6 in. Per second, chart drive motor and amplifier rated 120 volts, 60 hz, instruction book with wiring diagram, accessory kit, chart and power cord