This device converts an electrical signal such as an action potential or ECG readings into a visual signal. The fluorescent screen displays the signal horizontally and the ten range vertical amplifier will allow sensitivity up to 1 mV. The unit can be used in either single or dual-trace mode, the single trace mode allows display in either the X or Y axis, and the front panel allows you to rotate the trace. The dual channel construction allows you to display the dual-trace 30 mhz dual trace oscilloscope in either chop or alternate modes, as well as switch between CH1, CH2, ALT, EXT, and LINE. It also features a sharp-focus CRT with bright P31 phosphor and parallax-free internal graticule and a 1 kHz square wave internal calibration source. It operates on line voltage, using its own AC power cords and includes a spare fuse, instruction manual, and two probes. Size: 13 1/2" x 5 3/4" x 17 3/4". -- Specifications -- Vertical Amplifier: -- Sensitivity: 5 mV-5 V/div in 1-2-5 sequence, ten steps, Vernier adjustable between steps -- Accuracy: 3% -- Frequency Response: 5 mV-5 V/div (DC to 20MHz, -3dB); 1 mV/div (uncalibrated): DC to 10 MHz (-3dB) -- Impedance: 1MO, 35pF -- Max Input Voltage: 400 V -- Horizontal Amplifier -- Sensitivity: as per vertical amplifier -- Accuracy: 3%, Y-axis; 6%, X-axis -- Sweep Speed: 0.5 s/div-0.2 s/div in 1-2-5 sequence, nineteen steps, Vernier adjustable between steps