Item Type: Digital Oscilloscope_x000D_ Model: 138PRO_x000D_ Material: PCB_x000D_ Power Supply: Built in lithium battery 1250mAh. _x000D_ Sampling Rate: 2.5MS/S_x000D_ Bandwidth: 200KHZ_x000D_ Trigger Mode: AUTO, Normal, Single. _x000D_ Coupling Mode: AC DC_x000D_ PWM Output: Duty ratio 0-100.0%_x000D_ Display: 2.4in display, 320 x 240 resolution. 1Quick in Sampling: The digital oscilloscope has 2.5MS/s real time sampling rate, 200KHz bandwidth, 80KHz PWM, and complete trigger function. Equipped with efficient one button AUTO, the measured waveform can be displayed without complicated adjustment. 2Wide Detect Range: Can be freely used for periodic analog signals and non periodic digital signals, and can measure voltages up to 400V. 3Clear LCD Display: The portable oscilloscope is equipped with a 2.4in high definition LCD screen with a resolution of 320 x 240, small size and strong anti overload capability. 4Long Battery Life: The built in 1250mAh lithium battery can be used continuously for about 4 hours after being fully charged. It can also be used when charging, very convenient. 5Wider Application: Very suitable for personnel in maintenance industry and R and D education industry. Highly practical oscilloscope can meet your daily test needs. 1 x Digital Oscilloscope 1 x Cable with Crocodile Clip 1 x P1600 Cable 1 x Accessory 1 x USB Charging Cable