Product: SainSmart LA104 Handheld 4-Channel Logic Analyzer w/ 2.8" Color TFT Screen SPI I2C UART Programmable 100Msa/s Max Sampling Rate
Brand: SainSmart
Compact Design: Equipped with a rich 2.8" 320x240 TFT display and side thumbwheels allow for easy operation and navigation.
Wide Application: Analyze UART, I2C, SPI, and many other standard protocols accepted. This unit is specially designed for UART, SPI, I2C, and other communication debugging.
Portable: Its small form factor conveniently fits inside any pocket so it's always ready on the go!
Easy Saving: The built-in 8 MB flash storage makes saving images and transferring data easier than ever!
Simple to Use: Product instructions are provided, but if you have any more concerns, SainSmart provides more details in their wiki page and customer assistance with any questions that may arise!

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