Feature: 1. The fuselage silicone shell has anti‑slip and anti‑drop functions. The joystick replaces the original direction keys, making the operation efficient. 2. Added a fast one‑key automatic function, so you can easily grab the waveform like a desktop computer. 3. Added a 1KHz self‑checking square wave, the storage depth is also updated to 12kpts. You can pause at any time to save the previous waveform. 4. The digital oscilloscope is fully functional, practical, cost‑effective, lightweight, compact, easy to carry, and simple to operate. 5. The real‑time sampling rate of the digital oscilloscope is 1,640.4 feet, and the analog bandwidth is 110 MHz. 6. You can compare with the currently updated waveform. Brightness and shifting mode make it easier to detect and record waveforms. Specification: Item Type: Handheld oscilloscope Material: ABS+silicone Model: FNIRSI-1C15 Uses: Home appliance testing, scientific research and education, product development, mains testing, automobile diagnosis Plug Specification: EU plug Plug Voltage: 220V Channel Coupling AC/DC Time Base Range: 5ns-10s Single Trigger: Support Number of Channels: 1 One-Key Automatic: Support Input Impedance: 1MΩ Screen Size: 2.4 inches Waveform Measurement: 14 types Trigger Mode: Auto/Normal/single Operation Mode: Button + joystick Screen Resolution: 320 x 240 Measurement Accuracy: ±2% Trigger Type: Rising edge/falling edge Waveform Analysis: Support dragging/expanding Analog Bandwidth: 110M Reference Waveform: Support Display Mode: Yт/scroll Language: Chinese/English Sampling Rate: 500M/S Waveform Save: Support Afterglow Time: None/1s/∞ Rise Time: