Description: Multiple modes: This handheld oscilloscope has 3 trigger modes: auto, single and normal, meeting your different needs. Good performance: This portable oscilloscope is useful and can provide 3.3V, 0-80Khz, and 0-100% duty ratio square waves. Digital display: This handheld oscilloscope has a 2.4 inch LCD, and the 320x240 resolution can display everything clearly. Wide application: This handheld oscilloscope fits many occasions, such as car repair, home appliance repair, DIY study, and so on. Small and lightweight: This handheld oscilloscope is portable and compact, and is convenient to carry or store. Specification: Power voltage: 5-6V/4-9V. Sampling ratio: 2.5MSa/s. Bandwidth: 200Khz. Voltage: X1：-40V(Vpp: 80V), X10：-400V(Vpp: 800V). Trigger method: Auto/Normal/Single. Coupler: AC/DC. PWM output: 3.3V, frequency: 0-80Khz, duty ratio: 0-100%. LCD screen: 2.4 inch, 320x240. Size(LxWxH): Approx. 65x60x18mm/2.56x2.36x0.71 inch. Battery: 1250mAh(Build-in). Note: There might be a bit of color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: Type 1: 1 Piece Handheld Oscilloscope(with 1 Piece Pin Header, 1 Piece Charging Cable, 1 Piece Testing Line, 1 Piece User Manual). Type 2: 1 Piece Handheld Oscilloscope(with 1 Piece Pin Header, 1 Piece Charging Cable, 1 Piece Testing Line, 1 Piece User Manual, 1 Piece High Voltage Probe).