Welcome to our store! Fast Sampling: The digital oscilloscope boasts a 2.5MS/s real-time sampling rate, 200KHz bandwidth, 80KHz PWM, and complete trigger functions. The efficient one-button AUTO function displays the measured waveform without complex adjustments. Wide Detection Range: Suitable for periodic analog signals and non-periodic digital signals, capable of measuring voltages up to ±400V. Clear LCD Display: Equipped with a 2.4-inch high-definition LCD screen (320 x 240 resolution), this portable oscilloscope is compact and features strong anti-overload capabilities. Long Battery Life: The built-in 1250mAh lithium battery provides approximately 4 hours of continuous use on a full charge. It can also be used while charging for ultimate convenience. Broader Application: Highly suitable for maintenance industry professionals and R&D education sectors. This practical oscilloscope meets your daily testing needs. Item Type: Digital Oscilloscope Model: 138PRO Material: PCB Power Supply: Built-in 1250mAh Lithium Battery Sampling Rate: 2.5MS/S Bandwidth: 200KHZ Trigger Mode: AUTO, Normal, Single Coupling Mode: AC DC PWM Output: Duty Cycle 0-100.0% Display: 2.4-inch display, 320 x 240 resolution. Package Includes: 1 x Digital Oscilloscope, 1 x Crocodile Clip Cable, 1 x P1600 Cable, 1 x Accessory, 1 x USB Charging Cable