Feature: 1. Oscilloscope + multimeter + signal source waveform generator, multifunction in one, suitable for outdoor use. 2. The oscilloscope has a bandwidth of 40MHz, a sampling rate of 250MS/s, a storage depth of 8K, maximum waveform update rate of 10000 wfrms/s, and supports automatic measurement. 3. Standard USB TYPE‑C interface, support power bank charging and host computer communication, 3.5‑inch LCD display. 4. Multifunctional multimeter, support standard voltage, current, resistance, capacitance, diode, continuity measurement. 5. The waveform output frequency is sine wave (0.1Hz~25MHz), square wave (0.1Hz~5MHz), sawtooth wave (0.1Hz~1MHz), arbitrary wave (0.1Hz~5MHz). Specification: Item Type: Oscilloscope Multiumeter Material: ABS Color: As shown in the picture Model: HDS242 Battery: Polymerizable lithium battery 18650S22 x 2 4400mAh (built-in battery) Power Adapter: AC100-240V Application: Measurement of electrical signal parameters Model HDS242 Bandwidth 40MHz Channel Dual channel Real-time Sampling Rate 250MSa/s (single channel), 125MSa/s (dual channel) Sampling Mode Normal, peak sampling Storage Depth 8K Show 3.5 inch LCD Waveform Update Rate 10000 wfrms/s Input Coupling DC, AC, ground input Resistance 1MΩ±2%, in parallel with 16pF±10pF Probe Attenuation Coefficient 1X, 10X, 100X, 1000X Maximum Input Voltage 400V (DC+AC peak value, 1MΩ input impedance) (10:1 probe attenuation) Bandwidth Limit 20MHz Time Base Range 5ns/div~500s/div, step by 1~2~5 system Vertical Sensitivity 10mV/div~10V/div Vertical Resolution 8bit Low Frequency Response (-3db) ≤10Hz at BNC Rise Time (typical on BNC) ≤5ns Trigger Type Edge trigger Trigger Method Automatic, normal, single Trigger Level ±4 divisions from the center of the display Automatic Measurement Frequency, period, amplitude, maximum, minimum, average, peak-to-peak, Cursor Measurement Voltage difference between cursors (△V), time difference between cursors (△T) Communication Interface USB TYPE-C Digital Display 4½ (Maximum display 20000) Measuring Voltage, current, resistance, capacitance, diode, on-off Input Resistance 10MΩ Diode 0-2V Function Name Range Accuracy DC Voltage 200.00mV ±(0.5%+5 dig) 2.0000V/20.000V/200.00V ±(0.3%+3 dig) 1000.0V ±(0.5%+2 dig) AC Voltage 200.00mV/2.0000V/20.000V/200.00V ±(0.8%+5dig) 750.00V ±(1%+5dig) DC 20.000mA/200.00mA ±(1%+5dig) 10.000A ±(2.5%+2dig) Alternating Current 20.000mA/200.00mA ±(1%+5dig) 10.000A ±(2.8%+5dig) Resistance (Ω) 200.00Ω/2.0000kΩ/20.000kΩ/200.00kΩ/2.0000MΩ ±(0.8%+3dig) 20.000MΩ ±(1%+3dig) 100.00MΩ ±(3%+3dig) Capacitance (F) 20.000nF/200.00nF/2.0000μF/20.000μF/200.00μF/2.0000mF ±(3.0%+10dig) Frequency Response (Hz) (40-1000) Hz Wave Output Frequency Sine wave 0.1Hz~25MHz Square Wave 0.1Hz~5MHz Sawtooth wave 0.1Hz~1MHz Arbitrary wave 0.1Hz~5MHz Sampling Rate 125MS/s Number of Channels 1 Output Amplitude 20mVpp-5Vpp (high resistance), 10mVpp-2.5Vpp (50Ω) Wave Length 8K Vertical Resolution 14bits Output Impedance 50Ω . Package List: 1 x Handheld Oscilloscope1 x BNC to Crocodilian Clip1 x USB TYPE-C Cable2 x Test Leads1 x Probe Pen1 x Bag1 x Calibration Pen8 x Plastic Rings2 x Plastic Cover1 x Hollow Iron Needle2 x Instruction Manual