Recorder Features. Recorder can work stably, dependably and durably with leading design and technology. Benefits ? Records the waveform details in extenso. ? The design of high precision and sampling frequency. ? Average review time of single case can be limited than 40 seconds. ? Using the USB2 interface, average review time of single case can be less than 40 seconds. ? The original data can be saved perfectly by no compression as the maximum capability be 2GB. ? Damages are avoided due to the repeated insertion and pulling out, using the inbuilt TF card for data storage. ? Records are factual from the starting time to the data sample, owing to the real time clock of itself. ? The product is provided with functions of waveform preview, record review and event marking. ? It has a small volume with OLED screen.The resolution is 160*1.