The DSO152 is a compact, entry-level oscilloscope, designed for basic signal analysis and maintenance tasks. It provides essential oscilloscope functions in a lightweight and easy-to-carry design.It has a realtime sampling rate of 2.5MS/s, abandwidth of 200KHz, and complete trigger functions (single, normal, and automatic).It can be used freely for both periodic analog signals and nonperiodic digital signals, and can measure voltages up to ±400V.Equipped with an efficient one-key AUTO, it can display the measured waveform without cumbersome adjustments.Equipped with a 2.8-inch 320*240 resolution high-definition LCD screen. Built-in 1000mAh high-quality lithium battery, can be used continuously for about 4 hours after fully charged. Features Portable 2.8" TFT Handheld Oscilloscope for beginners, hobbyist DSO oscilloscope: 2.5MS/s, 200KHz bandwidth, ±400V voltage range. High-definition 320*240 LCD, Type-C interface. Finished assembly, lightweight, perfect for maintenance. Versatile trigger functions: single, normal, automatic. Suitable for analog and digital signals. Convenient one-key AUTO adjustment, quickly generate waveforms with ease. Displays waveform without complex setup. Battery Life: Built-in 1000mAh lithium battery with 4 hours of use per charge. Long press AUTO for baseline calibration. Recommended Use: Perfect for basic maintenance and educational labs requiring fundamental signal analysis. Parameter Index Brand FNIRSI Model DSO-152 Channel 1 Sampling Rate 2.5MS/s Bandwidth 200KHz Vertical Sensitivity 10mV/Div - 20V/Div (Progress according to the 1-2-5 way) Time Base Range 10μs/Div - 50s/Div (Progress according to the 1-2-5 way) Voltage Range X1:±40V (Vpp:80V)X10:±400V (Vpp:800V) Trigger Mode Auto / Normal / Single Coupling Method AC/DC Display 2.8 Inches / PPI:320*240 USB Charging 5V/1A Lithium Battery Capacity 1000mAh Square Wave Calibration Frequency: 1KDuty cycle: 50% Size 99x68.3x19.5mm Weight 100g ◈ Size and weight are measured manually, there may be some errors, please refer to the actual product.