The BW Technologies GA24XT-X GasAlertClip 2-year oxygen (O₂ ) detector is a handheld, single-gas detector that uses an electrochemical cell sensor to monitor oxygen levels consistently for up to two years without requiring calibration, recharging, or battery replacement, and that has audio, visual, and vibration alarms, which alert simultaneously when oxygen reaches the preset low or high alarm levels. The detector has an alphanumeric LCD screen that can be adjusted by the user to show the gas type monitored, the two alarm set-points, the alarm level (low or high), the maximum and minimum gas level recorded within the previous 24-hour period, the time elapsed since reaching that maximum or minimum level, and the detector life remaining, as well as whether or not a self-test is required. It is operated and adjusted with a single push button. This detector is used to indicate potentially harmful levels of oxygen gas in a variety of occupational settings such as petroleum refineries, tanneries, sewage treatment facilities, and paper mills; and in other personal safety, educational, and ambient monitoring applications.

This detector is factory-set to alert a low-alarm condition when the level of oxygen reaches 19.5% and a high-alarm condition when oxygen reaches 23.5%. In low-alarm conditions, the audible alarm beeps once, the visual alarm flashes, and the unit vibrates once per second. In high-alarm conditions, the audible alarm beeps twice, the visual alarm flashes two times, and the unit vibrates twice per second. The three bright, wide-angle visual alarm bars and the built-in vibration alarm help alert the user to potentially dangerous levels of oxygen in high-noise conditions. The alarm deactivates when the gas level returns to an acceptable range. Once the gas exposure alarm initiates, the detector records the maximum gas exposure and the time since reaching that maximum gas exposure for up to 24 hours. The detector logs an