This incredibly practical USB based instrument (requires a PC) works as an oscilloscope, spectrum analyzer, logic generator and protocol analyzer and comes with powerfull windows software with a wide selection of functions.

Here is the Windows program (will run without scope in demo mode)

Following operation modes are supported:
- 2-channel oscilloscope (marker measurements, triggering (absolute, differential, external) and adjustable pretrigger, signal voltage and frequency measurement, filtering, etc.).
- 2-channel spectrum analyzer (marker measurements, klirr-factor measurement, different window functions, filtering, etc.).
- 2-channel recorder (marker measurements, option to add 99 markers with comments, maximal, minimal and average voltage measurement for each channel, waveform record within several tens of hours, etc.).
- 16 (8)-channel logical analyzer (marker measurements, triggering (edge, level, mask) and adjustable pretrigger, external clocking (triggering), preset pulse miss, preset bit sequence/edge, decoding of the interface UART, SPI, I2C, 1-Wire, etc.).
- 8-channel logical generator(tabular waveform formatting or direct timing chart plotting with mouse on the screen, etc.).

In addition, USB oscilloscope ensures as follows:
- Add the comments to each measurement (to be recorded in the file with measurement results)
- Save all the measurement results as vector graphic, bitmap or text file for subsequent import to other programs or in the data or text file for subsequent analysis.
- Print all the measurement results.
- Copy all the measurement results to the buffer.
- Set the events and sounds.
- Calculate the different digital filters and perform the analog filtering.
- Perform the oscilloscope timing chart smoothing.
- Display the statistics for all the channels of logical analyzer and generator.
- Upgrade the device firmware with USB bus that allows supplementing the device features with any functions to order

Technical characteristics:
- number of channels:  2
- sample rate 100 Hz … 200 KHz
- buffer reading: 1126 sample/channel (1 channel), 563 sample/channel (2 channels)
- pipe reading: 64K sample/channel (1 or 2 channels)
- input voltage: -20 ... +20 V (hardware 2 sub-band)
- ADC capacity: 10 bits
- triggering: absolute (for rising/falling edge), differential (for difference between adjacent samples), external (for rising/falling edge of TTL levels) 
- window functions: Hamming, Hanning, Blackman, Blackman-Harris
   
Recorder:   
- sample rate: 0.01 Hz … 200 KHz
- maximum record time: 24 hours at Fs < 100 Hz
- input voltage: -20 ... +20 V (hardware 2 sub-band)
- ADC capacity: 10 bit
 
Logic analyzer:
- number of channels: 16 (8 if logical generator is on)
- sample rate: 1 KHz … 8 MHz
- memory depth:
 buffer reading (Fs=4-8 mHz):  128 bit/channel
 buffer reading (Fs=2-2.66 mHz): 1160 bit/channel
 buffer reading (Fs<=1 mHz):  1544 bit/channel
 buffer reading in concatenation mode: 1 Mbit/channel
 pipe reading (Fs < 500KHz): 4К to 256M bit/channel
- input voltage: 0 ... +5 V (available surge voltage protection)
- triggering: for edges, mask, miss pulses, external clocking
- clocking: internal / external
    
Logical generator:
- number of channels: 8
- sample rate: 1 KHz … 1 MHz
- memory depth: 1544 bit/channel
- output voltage: "0" - 0 V, "1" - 3.3 V
- maximum input/output current: 10 mA