◆ Narrow-linewidth Semiconductor Lasers Independently developed and manufactured. Specially modulated laser wavelengths prevent cross-interference among multiple gases and improve trace gas detection precision. ◆ Patented Photoacoustic Cell Proprietary sub-ultrasonic resonant photoacoustic cell, compact (5 cm long, 20 g weight), highly responsive and vibration‑free. No moving parts avoids system vibration, extending service life and enhancing reliability. ◆ Custom High-sensitivity Digital Sub-ultrasonic Microphone Operates in the sub-ultrasonic band, less affected by external noise, ensuring stable and accurate system performance

◆ Measures Acetylene (C₂H₂), Ethylene (C₂H₄), Methane (CH₄), Hydrogen (H₂), Carbon Monoxide (CO), Carbon Dioxide (CO₂), Ethane (C₂H₆) and moisture content. A gas collection box gas monitoring module is available as an option to deliver comprehensive real-time monitoring and early warning for large-scale power transformers. ◆ Provides fault early warning and monitoring for oil-immersed transformers, and performs fault analysis and diagnosis by adopting methods including the David Triangle Diagram Method and the Three-Ratio Method.

◆ Measures acetylene (C₂H₂) and moisture content. It incorporates three independent detection systems to achieve redundant configuration, providing critical real-time monitoring and early warning for large-scale power transformers. ◆ Designed for relay protection and control of oil-immersed transformers, it can independently perform rapid and automatic detection of dissolved acetylene content in transformer oil, as well as equipment fault analysis, diagnosis and early warning.

◆ Performs full-component detection and is equipped with an additional rapid acetylene detection unit. It can operate normally under extreme conditions including extremely high gas content, carbonization of transformer oil, high temperature and high humidity. ◆ Optimized electromechanical structure, upgraded with reliable flange joints, equipped with additional oil filter and gas filter, improved degassing compensation process, enhanced algorithm adapted to ultra-wide measuring range, and self-calibration by dual photoacoustic cells.