Features 2 input channels high contrast LCD with white backlight full auto set-up for volt/div and time/div recorder roll mode, up to 170h per screen trigger mode: run - normal - once - roll ... adjustable trigger level and slope peak measurements: max, min. and pk to pk measurements: rms, dB(rel), dBV, dBm and dBG Direct Audio power measurements x1 and x10 probe calculation option several display modes StereoScope mode for audio measurement X and Y position shift battery pack included, fast charge possible  Specifications input impedance: 1 Mohm / 20pF bandwidth: 2 x 30MHz sampling: 240MS/s per channel step markers for voltage, time, ... vertical resolution: 8 bit sensitivity: min. 30µV volts per division: 1mV to 20V/div time base: from 25ns to 1 hr/div AC/DC input coupling selection RS232 communication with PC (PCUSB6 for USB connection in option) dimensions: 9.1" x 5.9" x 2.0" weight: 30oz. incl. battery  Downloads   - Files APS230info.pdf (700 kB) Oscilloscopes_Cross_Reference.pdf (102 kB) APS230_CAPTURE_V10.zip (1738 kB)   - Manuals Usermanual_APS230.pdf (4990 kB)  Extra Info    - Website Visit our APS230 website: www.aps230.com