The Extech Refrigerant Leak Detector is a highly advanced device for detecting gas leaks, providing both acoustic and visual warning signals. This device is capable of identifying a variety of gases, including iso-butane, propane, hydrogen, and ammonia, making it a versatile tool for professionals in refrigeration and air conditioning. The detector is powered by four AA batteries, which are included, allowing for immediate use. It operates on alkaline batteries, ensuring reliable performance. The detector is factory calibrated, enabling precise and effective leak detection. With its compact design and user-friendly operation, the Extech Refrigerant Leak Detector is ideal for use in various environments, whether in industrial settings or private homes. The combination of acoustic and visual alarms ensures that users are promptly alerted to potential hazards, enhancing safety and minimizing the risk of accidents.