Feature: 1. LIGHTWEIGHT AND PORTABLE: Handheld digital oscilloscope uses a 2.8in HD color screen with excellent experience, pocket size, portable and compact 2. TECHNICAL PARAMETERS: The average time sampling rate of the handheld digital oscilloscope is 8.33MS/S, the bandwidth is 1MHz, accurate and stable 3. COMPLETE TRIGGER: Portable oscilloscope has complete trigger function(single, normal, automatic), and can use both periodic analog and periodic digital signals in any situation 4. EASY TO USE: The handheld digital portable oscilloscope can measure voltage signals up to ±400V and uses 1KHZ calibration square waves for easy probe calibration 5. EFFICIENT AND AUTOMATIC: The oscilloscope kit is equipped with an efficient one click automatic measurement function that displays waveform measurements without complex adjustments Specification: Item Type: Handheld Digital Oscilloscope Sampling Rate: 8.33Ms/s Bandwidth: 1mhz Vertical Sensitivity: 10mV/div - 10V/Div Time Base Range: 3 Microseconds - 10 seconds Voltage Range: X1: ±40V(VPP: 80V), X10: ±400V(VPP: 800V) Trigger Mode: Automatic, timed, single Trigger Type: Rising, falling Coupling Mode: AC, DC Screen Size: 2.8in 320 x 240 USB Charging: 5V 1A Battery: 1 x Rechargeable li ion battery 1200mAh. Package List: 1 x Oscilloscope 1 x Test Clip 1 x User Manual