cilloscope  Jinhan JDS2023 Digital Storagesignal Function Generator 20MHz Oscilloscope AC/DC Input Coupling • Professional digital oscilloscope with 1CH, 200MSa/s Max. sampling rate and 20MHz bandwidth. • Colorful TFT LCD display with 320*240 pixels resolution, easy and clear for reading. • Backlight brightness can be adjusted; color display/black and white display for selection. • Supports Chinese and English menu display. • Combined with signal generator function, can measure frequency, duty cycle, amplitude and offset. • Data storage with USB interface, 2K storage depth. • Triggering modes: Automatic, Normal, Single. • Rising/falling edge trigger available, which can measure 50Hz to 40MHz. • Time and voltage cursor, peak to peak/duty cycle/frequency measurement. • Powered by 1*18650 3.7V lithium battery, with battery charger for convenient charging. 20MHz 200M Sa / s dual channel input Input coupling: AC, DC (AC, DC) Input impedance: 1MΩ 25pF Maximum input voltage: 40V (probe X1); 400V (probe X10) can measure 220V voltage; (probe X100) can measure 2000V voltage Probe attenuation: 1X, 10X Probe attenuation coefficient setting: 1X, 10X, 100X Signal acquisition system Sampling method: real-time sampling, random sampling Storage depth: 4K (2K per channel) Acquisition mode: sampling, peak detection Vertical system Vertical Sensitivity: 10mV-5V (Probe 1X) 100mV-50V (Probe 10X) (1,2.5,5 step) Vertical accuracy: +/- 3% Vertical resolution: 8bit Bandwidth: 20MHz Horizontal system Real-time sampling rate: 200 MSa / s Horizontal scanning range: 10nS / div-5S / div Trigger system Mode: automatic, normal and single Type: rising edge, falling edge Automatic detection: support (50Hz-40MHz) Mathematical operations: CH1 + CH2, CH1-CH2, CH2-CH1 measuring system Cursor measurement: Supports time and voltage cursors Measuring method: manual Measurements: peak-to-peak and frequency Equipment Screen: 3.2 inch, 16 bit true color, TFT, 320 * 240 Battery: 3000 + mA lithium battery (single battery for 5 hours or so) Size: 202 * 100 * 35 (mm) Digital channels: 200M sampling Signal generator Frequency: sine wave (1Hz - 5MHz); other (1Hz-1MHz) Duty Cycle: 0% - 100% Amplitude: 100mV - 4V Offset: + (0V -2V) 1 * JDS2023 Oscilloscope 1 * Signal Generator Probe  1 * Oscilloscope Probe  1 * Battery Charger 1 * USB Cable 1 * Screen Protector 1 * CD 1 * User manual 1 * 18650 lithium battery