SainSmart AVR DSO150 Mini Pocket-Sized Digital Storage Oscilloscope Board ATmega88
Feature:1. 2x DC Channel (Max 5V.)2. 250Ksps rate (500ms/200ms/100ms/50ms/20ms/10ms/5ms/2ms/1ms/500us/200us/100us)3. USB power4. AVR 8Bit Core5. Dimension 5cm x5.2cm x 1.3cm6. 2.1" GLCD 128x64 KS01087. slop +/-, 5%8. trigger level"0-5.1"Package List:  1x DSO150 Body1x Mini USB Cable1x Mini Probe