Feature: 1. Portable Digital Oscilloscope: Mini oscilloscope with 5.0MS/s real time sampling rate and 1M bandwidth, suitable for periodic analog signals and non periodic digital signals. 2. Professional Design: Features full trigger functions (AUTO, Normal, Single) and a 2.8 inch HD LCD screen with 320 x 240 resolution. Type C interface supports data transfer and charging. Supports direct firmware updates. 3. Convenient Mini Oscilloscope: Assembled machine with light weight, easy to carry, and to use without assembly welding issues. Ideal for repair and R D education industries. Meet daily testing needs efficiently. 4. Effortless Measurement: Equipped with efficient one key AUTO setting for all parameters, displaying measured waveforms without tedious adjustments. Long press AUTO button for quick baseline calibration and waveform measurement, enhancing workflow efficiency. 5. Extended Battery Life: Built in 1000mAh lithium battery for approximately 4 hour continuous use after full charge. Comes with a type c charging cable for convenient use while charging. Specification: Item Type: Handheld Oscilloscope Mode: DSO153 Basic Parameters: Sampling Rate: 5MS/s Bandwidth: 1M Vertical Sensitivity: 10mV/Div-10V/Div Time Base Range: 500ns to 20S Voltage Range: X1: ± 40V (Vpp 80V) Trigger Mode: Automatic, regular, single Trigger Edge: Rising edge, falling edge Coupling Mode: AC DC Calibration Square Wave: Frequency: 1K; Duty Cycle: 50%; Amplitude: 3.3V Signal Generator: Frequency: 0-10KHz Duty Cycle: 0 to 100 perfect (rectangular and sawtooth) Amplitude: 0.1-3.3V Waveform: Sine wave, rectangular wave, sawtooth wave half wave, full wave, positive step wave, inverse step wave, ladder wave, noise wave, exponential rise, exponential fall, DC signal, multi sound, for Zinke pulse, for Lorenz wave Others: Display: 2.8 inches, PPI 320 x 240 USB Charging: 5V 1A Lithium Battery Capacity: 1 x 1000mAh rechargeable lithium battery (shipped with built in battery) . Package List: 1 x Oscilloscope 1 x User Manual 1 x Lanyard 1 x Crocodile Clip 1 x USB Cable