BW Gas Alert Micro Clip XL BW GasAlertMicroClip XL 4-Gas Detector – %LEL, O2, H2S, Carbon Monoxide The simple to put on, small and also streamlined GasAlertMicroClip offers inexpensive defense from climatic gas dangers. For expanded battery life, specifically in chilly climate, pick the GasAlertMicroClip XL. The GasAlertMicroClip is totally suitable with BW’s MicroDock II automated examination and also calibration system as well as Fleet Manager II desktop computer software application.