2.8"  3in1 Oscilloscope Multimeter Signal Source Dual Channel 250MSa/s Sampling Rate Handheld Oscilloscopes for Electronic Test

 Features:

 1.200Msps high speed sampling, 80MHz analog bandwidth, 6000 code digital multimeter

 2. Knob to convert the view waveform, there are three waveform scanning modes, such as automatic / conventional / single

 3. Measurement data waveform hold function, can store 2000 groups of data, 200 waveforms

 4. independent setting parameters such as time base, waveform scan mode, etc. during waveform measurement

 5. True RMS, measuring the RMS value of waveform without considering waveform parameters and distortion

 6. Relative value measurement, effectively eliminate lead resistance, distributed capacitance or interference signals

 7. functions include DC/AC voltage/current, resistance, capacitance, frequency, duty cycle diode/on/off test

 8. Automatic / manual range switching, the same screen display measurement data and historical data

 9. overload protection 500mA/10A double fuse, double protection instrument

 10. 15 minutes no operation automatic shutdown function; high bright backlight, clear display

 11. panel calibration, memory calibration coefficient without potentiometer adjustment, higher reliability

 Specifications:

 Name: 3 in 1 oscilloscope

 Material: ABS

 Display resolution: 320 (horizontal) * 240 (vertical) pixels

 Display size: 2.8-inch TFT color screen diagonal

 Display backlight time: adjustable

 Display backlight brightness: adjustable

 Power supply: AC100V-240V, 50Hz/60Hz; DC15W fast charging

 Overall power consumption: oscilloscope range ≤ 400mA, multimeter range ≤ 200mA

 Battery: 18650 lithium battery 2000mAh x 2 (shipped with built-in lithium battery)

 Battery power indicator: Yes

 Automatic sleep: can be adjusted or off time, there will be a sound or display prompt before sleep.

 Sound prompt: On/Off optional; there are various sound prompts, such as button sound, high voltage or over-range alarm sound during measurement, and some AI sounds that may be added. To turn off the sound, you can choose to turn off the sound for the whole machine, or turn off only selected prompt sounds.

 Use time: about 10 hours for oscilloscope range, about 20 hours for multimeter range

 Operating environment: 0℃~40℃, <75%RH

 Storage conditions: -10℃ ~ 60℃, <90%RH

 Oscilloscope Function:

 Number of channels: channel CH1, channel CH2

 Bandwidth: 80MHz (single channel), 50MHz (dual channel)

 Maximum real-time sampling rate: 250MSa/s (single channel), 125MSa/s

 Waveform interpolation: (Sin x)/x

 Record length: 6K max for single channel; 3K max for dual channel

 Horizontal scale range: 5nS/div ~ 50S/div, 1>2, 5 levels

 AD converter: 8-bit resolution, each channel sampled simultaneously

 Vertical scale range: 1 X:10mV/div-10V/div; 10X:100mV/div-100V/div

 Vertical measurement range: ±4

 Optional bandwidth limit: 20MHz

 Low frequency response (-3db): ≤10Hz at BNC

 Vertical gain accuracy: ±3% in "normal" or "average" acquisition mode

 Input resistance: 1MΩ/15

 Input coupling: DC, AC, GND

 Probe attenuation: 1X, 10X

 Support probe attenuation factor: 1X, 10X, 100X

 Input protection voltage: 300Vpp

 Trigger type: edge trigger

 Trigger mode: automatic, single, normal

 Trigger level: ±4div

 Edge trigger slope: rising edge, falling edge, rising edge or falling edge

 Voltage parameter measurement: peak-to-peak, RMS, average, peak, maximum, minimum

 Time parameter measurement: frequency, period, duty cycle, positive pulse width, negative pulse width

 Cursors: voltage difference between cursors, time difference between cursors Intelligent cursor 1 group, when the cursor moves, the capture point keeps tracking the current waveform, and the current cursor position information, voltage difference and time difference are displayed below.

 Spectrum analysis FFT: Yes

 Storage capacity: 2000 sets of data, 200 sets of waveform records, with storage file manager

 Filtering: High-pass, low-pass

 Mathematical operation: FFT

 Afterglow option: Yes (afterglow effect is necessary for making Lissajous graph) Afterglow selection is divided into multiple levels selectable.

 Real-time computer communication: USB communication

 Waveform scaling: Yes

 AI Waveform Preview: Add a small window at the top of the main interface to display a thumbnail of the waveform for preview, with an indicator that indicates where the current main interface waveform is in the overall acquired waveform.

 Multimeter Function:

 DC voltage: 600.0mV-1000V, 0.75% rdg+10dgt

 AC voltage: 600.0mV-750V (TRMS, frequency range: 40Hz-1KHz), 1.0%rdg+10dgt

 DC current: 60.00mA/5000.0mA, 6.000A/1000A

 Overload protection: fuse type fuse 500mA/250V, 10A/250V, 1.2% rdg+10dgt

 AC current: 60.00mA/5000.0mA, 6.000A/1000A (TRMS) Overload protection: Fuse type fuse 500mA/250V, 10A/250V, 1.5% rdg+10dgt

 Resistance: 600.0Ω-60.00M, 1.0%rdg+5dgt

 Capacitance: 10.00nF-1.000mF, 2.0% rdg+10dgt; 1.000mF-100.0mF, 5.0% rdg+10dgt

 Frequency: 10.00Hz-10.00MHz, 1.0%rdg+5dgt

 Diode test: open circuit voltage about 3V, maximum test current about 2mA

 Switch test: ≤ 50Ω beep, ≥ 600Ω display 0L

 Waveform Generator Function:

 Waveform frequency: 

 Sine wave: 1Hz-5MHz

 Square wave: 1Hz-500KHz

 Triangle wave: 1Hz-500KHz

 Amplitude: fixed point output, max 5Vpp (50Ω) - 0Vpp, 0.1Vpp, 0.2Vpp, 0.5Vpp, 1Vpp, 2Vpp, 3Vpp, 5Vpp

 Frequency resolution: 0.2Hz

 Number of channels: 1

 Vertical resolution: 8 bits

 Output impedance: 50Ω

 Square wave pulse width accuracy: ±20nS

 Package Included:

 Carton packaging

 3 in 1 oscilloscope * 1 + test leads * 1 + oscilloscope probe * 1 + signal output clip line * 1 + C-type USB cable * 1 + manual * 1 + cloth bag * 1