مناقصه عمومی یک مرحله ای خرید دستگاه پلی سمنوگرافی 28 Channels Multi-Parameter Sleep Monitor Polysomnography Device Small size, light weight (≤ 200g, including battery), carry conveniently. - 3. Wireless real-time monitoring and data card storage monitoring. - 4. Energy saving, built-in battery, can be continuously monitored for more than 20 hours, rechargeable. - 5. Built-in oxygen saturation instrument, pressure sensor and EEG sensor.