Features: This digital oscilloscope kit adopts ARM Cortex-M3 processor and with 2.4-inch TFT screen and protective for case. Used for secondary development on the basis of this kit, for example, it can be changed to Millivoltmeter, data loggers. With Auto/Normal/Single trigger modes, easy to capture the moment waveform. With waveform parameter digital display, including frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values. Short-circuit and open-circuit detection: can help the user find out the soldering error. Observable the previous waveform before trigger (negative delay). Freeze waveform display at any for time (HOLD function). Come with instructions, easy to install and operate. Specifications: Material: ABS+Metal Size: 115x75mm/4.53x2.95in Maximum Real-time Sampling Rate: 1MSa/s Analog Bandwidth: 0-200KHz Sensitivity Range: 5mV/div-20mV/idv Maximum Input Voltage: 50Vpk (1X probe) Input Impedance: 1M ohms/20pF Accuracy: 12 Bits Record Length: 1024 points Coupling Modes: for DC / AC / GND for Time Base Range: 500s/Div - 10us / Div Trigger Modes: Auto, Normal, and Single Trigger Position: Center of Buffer Supply Voltage: for DC 9V(8-10V) Current Consumption:~120mA @ 9V Main Board Size: 94 x 65mm / 3.7 x 2.56in Analog Board Size: 65 x 47mm / 2.56 x 1.85in Screen Size: 52 x 40mm / 2 x 1.57in Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item Package includes: 1x Digital Oscilloscope 1x BNC Clip 1x English Manual