Attention: 1) Kindly note 9V power supply included. 2) Pls use power supply adapter to give enough voltage to the device, or it cannot power on it or screen flickering, the adapter need "+" inside, " -" outside ( Center is Positive pole, Outside is negative pole ) 3）Carton package Pls contact us if need support from us. We will reply within 24hours, replace a new product or give you fully refund if you wish. thank you! This is fully assembled DSO Shell oscilloscope, upgraded product of DSO138. With new design and it offers more accurate and reliable measurements. 5mV/div sensitivity and low background noise make the device particularly useful for measuring weak signals. Come with a very detailed instructions and a probe to get you started easily. Require 9V DC power supply with 5.5mm (2.1mm center) jack and included here. Features and specifications: Maximum real-time sampling rate: 1 MSa/s Analog bandwidth: 0 - 200 KHz Sensitivity range: 5 – 20 mV/div Maximum input voltage: 50 Vpk (1X probe) Input impedance: 1M ohms/20pF Accuracy: 12 bits Record length: 1024 points Coupling modes: DC / AC / GND Time Base Range: 500s/Div – 10us / Div Trigger modes: Auto, normal, and single Trigger position: Center of buffer Supply voltage: DC 9 V (8 – 10 V) Current consumption: ~120 mA @ 9 V Main board size: 94 x 65 mm (3.7 x 2.56 in) Analog board size: 65 x 47 mm (2.56 x 1.85 in) Screen size: 52 x 40 mm (2 x 1.57 in) Package size: 14.5 x 10 x 3.7 cm (5.7 x 3.94 x 1.45 in) Package weight: 179 grams (6.33 oz) Package include: 1 x Fully Assembled Digital Oscilloscope 1 x User Manual (English) 1 x BNC Clip Probe
- DC Power adapter is included. With Automatic mode, conventional mode and single trigger mode. Convenient to capture the instantaneous waveform. With secondary development on the basis, can be changed to voltmeter, data loggers. 2.4-inch color TFT display
- Waveform parameter digital display include: Frequency, period, pulse width, duty ratio, MAX./MIN./AVG./Peak-Peak/virtual values and effective value; Adopts ARM Cortex-M3 processor (STM32F103C8)
- Rising or falling edge trigger are available, also the trigger level position and vertical displacement are adjustable. Short-circuit and open-circuit detection to find out the soldering error
- Observable the previous waveform before trigger (negative delay). Freeze waveform display at any time (HOLD function). Come with instructions, easy to install and operate
- Waveform storage function: Waveform will not lose when save/tune out the waveform/shutdown waveform. Test signal source with 1KHz /3.3V square wave. Pls contact us if have any quality issue and need support, will reply within 24hours, refund or replace with a new one
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