Application of anti-malfunction algorithm to interference gas (Ethanol, FC-3283, IPA) Fast response speed by applying new infrared measurement principle Built-in high-performance pump to detect gas leakage quickly Built-in automatic flow control with flow sensor Built-in self-diagnosis function Application of proven detection principle with stable quality and service life Color graphic 1: 1 interactive parameter setting using LCD 4-20mA (Current source or Sink) output Easy to install monitoring system by RS-485 Modbus and PoE communication Two-stage alarm, one fault indication and relay contact output Built-in Data & Event log function Calibration and maintenance by one-man