JDS3034 Series Handheld Digital Storage Oscilloscope, 30MHz,Four Channel,250MSa/s Sample Rate  Features:  Professional digital oscilloscope with 250MSa/s Max. sampling rate and 30MHz bandwidth. Large 4.3inch Colorful TFT LCD display, easy and clear for reading. Backlight brightness can be adjusted. Data storage with USB interface, 16K per channel storage depth. Triggering modes: Automatic, Normal, Single. Includes time and voltage cursor, peak to peak/duty cycle/frequency/cycle measurement. Rising/falling edge trigger available, which can measure 50Hz to 60MHz. 10 minutes/30 minutes/never mode of auto power off function. Powered by 2 * 18650 3.7V lithium battery(not included), with battery charger for convenient charging. Comes with a protective bag, easy to storage and carry.   Specifications:  Plug Type: US Material: ABS Display: Full Color 4.3" TFT LCD Display(400 * 272 pixels) Sampling Rate: 250MSa/s Channel: 4 Bandwidth: 30MHz Vertical Resolution: 8bit Input Range: 10mV-5V 1x; 100mV-50V 10x; 1V-500V 100x(1-2.5-5 Step) Vertical Accuracy: +/-3% Impedance: 1MΩ 25pF Input Coupling: AC/DC Display Mode: X-Y;Y-T Input Voltage: 40V(x1); 400V(x10); 4000V(x100) Time Range: 10ns-50ms(1,2.5,5 step) 100ms-5s(Scan) Storage Depth: 16K per channel Trigger Mode: Automatic, Normal, Single Trigger Type: Rising/Falling Edge Trigger Automatic Measurement: 50Hz-60MHz Measurement: Peak to Peak/Duty Cycle/Frequency/Cycle Cursor: Time, Voltage Power Supply: 2 * 18650 3.7V Battery(Not included packge) Operation Environment: 0-50°C, 0-80%RH Storage Environment: -20-60°C, 0-90%RH Item Size: Approx. 22.4 * 13.8 * 4cm / 8.8 * 5.4 * 1.6in Item Weight: Approx. 654g / 23.1oz Package Size: Approx. 25.4 * 23.4 * 7.5cm / 10 * 9.2 * 3in Package Weight: Approx. 1347g / 47.5oz