◆ 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.

◆ 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

◆ 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

◆ 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