H2 pro, with its light-weight, simple operation and powerful automatic analysis features, will give you a brand new and amazing use experience. Innovative no screen design Through no screen design concept, relying on intelligent App, more humanized way of human-device interaction is achieved for impedance confirmation, waveforms display etc., which practically improve the clinical operation experience. High sampling & storage rate High-fidelity data extraction and storage technology provides more real data for sleep monitoring. Intelligent App, displays wirelessly in real-time Humanized operation interface Visual data collection interface provides more intuitive experience. Cross-platform data compatibility H2 series data analysis. H2 Pro comes with 52 Channels like EEG( Electrodes 6 to 16), EOG (2 Electrodes), EMG(2 Electrodes), ECG (2 Electrodes), LEG (4 Electrodes), REF (7 Electrodes), Expanded Channel (4 Electrodes), Flexible channel configuration, Thermal Airflow, Pressure Airflow, Snoring (by Microphone), Snoring (by Cannula pressure), Thoracic effort movement, abdominal effort movement, SpO2, Pulse Wave, Pulse Rate, PTT, Body Position, Video Signal and Audio Signal. Add on to this 11 Channel Signal from PAP and 28 Channels EEG / ECG Kit for Additional option so Total 80 Channels (52 + 28).