Flexible Operation: Powered by 2 AAA batteries, the probe of this halogen gas detector supports flexible bending for use in narrow pipelines. Better Application: This refrigerant gas detector can identify leakage points in air conditioning pipes, making it suitable for both home and industrial applications. High Accuracy: Equipped with a semiconductor sensor and a simple test circuit, the freon leak detector ensures quick response and high accuracy. Sound and Light Alarms: Audible alarm and indicator light provide real-time alerts, simplifying repair and maintenance tasks. Convenient Carrying: Lightweight and compact design makes the halogen gas tester easy to carry for on-site work. Item Type: Halogen Gas Detector Response Range: Approximately 50 PPM to 1000 PPM Sensitivity: > 50 PPM Preheating Time: About 35 seconds Response Time: Approximately 5 seconds at 500 PPM; approximately 2 seconds for concentrations above 500 PPM Alarm Method: Sound alarm and indicator light Battery: 2 x AAA alkaline batteries (800mAh), included Package List: 1 x Halogen Gas Detector 2 x AAA Batteries