I should gearbest for their delivery very fast and shipping good. The product is very very good at it's specifications and usefulness.But for the completeness missed the outer acrylic casing (shell) which is as shown on the product page which is not supplied with the product as mentioned a finished product.No doubt the product is completely soldered and assembled and is without the 12 volt dc adapter which one will require to power up .Even then it is worth more than it's price !!!I would appreciate if gearbest or Seller had supplied the outer protective acrylic casing it would have been wonderful !!! Without the cover it is always prone to external and accidental damage.I hope my review would help others and gearbest as well .
What is the frequency response?Hello Tony, Thanks for your inquiry.The frequency response is 200KHZ.
Description: This DSO138 digital oscilloscope kit adopts ARM Cortex-M3 processor and with 2.4-inch TFT screen. It's easy and reliable for circuit operation. It can display frequency, period, pulse width, duty ratio, max. / min. / avg. / peak-peak / virtual values.
Features: • This kit uses ARM Cortex-M3 processor, and includes a 2.4-inch color TFT display screen, can be used as ARM test development board • With automatic, regular and one-shot modes, easy to capture the moment waveform • Can be secondary developed to millivoltmeter, data loggers • Adjustable vertical displacement, and with instructions • Available rising or falling edge trigger • Observable previous trigger waveform (negative delay) • Can freeze at any time waveform display (HOLD function) • Comes 1Hz / 3.3V square wave test signal source • Waveform storage: not lose the waveform after power off • Short-circuit and open-circuit detection: can help the user find out the soldering error • TFT controller recognition function
Specifications - Maximum real-time sampling rate: 1Msps - Accuracy: 12bit - Sampling buffer depth: 1024bytes - Analog bandwidth: 0 - 200KHz - Vertical sensitivity: 10mV / Div - 5V - Input Impedance: 1 megohm - Maximum input voltage: 50Vpp ( 1: 1 probe ), 400Vpp ( 10: 1 probe) - Coupling modes: DC / AC / GND - The horizontal time base range: 10μs / Div - 50s
Dimensions and Weight
Product weight: 0.1300 kg Package weight: 0.1320 kg