Features: New ultra-thin design, small volume, light weight, convenient carrying Color TFT LCD display, 320*240 resolution, waveform display more clearly, stability JDS2012A is single channel,JDS2022Ais dual analog channel Support for USB storage device Have the edge trigger function, can automatically detect the support (50Hz - 40MHz) Support time and voltage cursors Support A variety of waveforms mathematical sum Support Chinese and English menu display A variety of display styles: color display, monochrome display Supports automatic power off and power-saving modes: time can be set Backlight brightness can be adjusted Waveforms can be saved by screenshot Long standby: single cell battery can work continuously for 5 hours JDS2012A has a digital multimeter functions ( JDS2022A not) Specification: Model （Optional） Bandwidth real-time sampling rate The storage depth Multimeter function Voltage Plug （Optional） Battery (not included) Size Weight JHJDS2012A Single channel 20MHZ Single channel 200MSa/s 2Kpts YES 100-240V US Plug, EU plug 18650 21.5*10*3.5cm/8.5*3.9*1.4in Approx.811g~820g/28.6oz~28.9oz JHJDS2022A Dual channel 20MHZ Dual channel 200MSa/s 2Kptsx2 NO 100-240V 18650 21.5*10*3.5cm/8.5*3.9*1.4in Approx.811g~820g/28.6oz~28.9oz Technical Specifications import Input coupling AC, DC Input impedance 1MΩ 25pF The maximum input voltage 40V (probe X1); 400V (probe X10) can be measured 220V voltage; (probe X100) 2000V voltage can be measured Probe attenuation 1X,10X Set the probe attenuation factor 1X, 10X,100X Signal acquisition system Sampling Method Real-time sampling, random sampling Memory depth 4K (per channel for each 2K) Acquisition Mode Sample, Peak Detect Vertical System Vertical Sensitivity 10mV-5V (Probe 1X) 100mV-50V (probe 10X) (1,2.5,5 step) Vertical accuracy +/-3% Vertical resolution 8bit Bandwidth 20MHz Horizontal Systems Real-time sampling rate 200 MSa/s Horizontal scan range 10nS/div-5S/div Trigger System Mode Auto, Normal and Single Type Rising edge trigger, falling edge trigger Automatic detection Support (50Hz-40MHz) Math CH1+CH2,CH1-CH2,CH2-CH1 Measurement System Cursor measurements Support time and voltage cursors Measurements Manual Measure Peak and frequency Equipment Screen 3.2-inch, 16-bit true color, TFT, 320 * 240 Battery 1*18650 Battery (not included) Size as the picture shows Weight Approx.811g~820g/28.6oz~28.9oz Package list: JDS2012A 1 *oscilloscope(battery not included) 1 * CD 1* probe 1* lithium battery charger 1 * USB cable 2* multimeter test cable 1* screen dust mask 1* locating sleeve 1* probe hook 4 * marking ring 1 * black bag JDS2022A 1 *oscilloscope(battery not included) 1 * CD 1 * probe 1* lithium battery charger 1 * USB cable 1* screen dust mask 2* locating sleeve 8 * marking ring 1* probe adjust tool 1 * black bag Package list: 1 set x oscilloscope kit .