Introduction The device adopts side-stream method to measure the parameter related to ETCO₂ and AWRR. It can detect pulmonary ventilation function and reflect the circulation and pulmonary blood flow and indirectly reflect the alveolar ventilation. It can also detect the blood oxygen saturation and pulse.

• End-tidal CO₂ measurement function;
• Respiration rate measurement function;
• SpO₂ measurement function;
• Pulse rate measurement function;
• Optional three units;
• With audible and visual alarm and silencing functions, the alarm limit can be set;
• Over-limit alarm function for EtCO₂, Respiration rate, SpO₂ and Pulse rate;
• Low battery alarm function;
• With the prompt function of “Checking Filterline”;
• User can calibrate zero by themselves.
• With atmospheric pressure and temperature compensation functions
• Rechargeable lithium battery, up to 8-hour user time;