A quick evaluation of the potential danger resulting from fires, accidents and other disasters is achieved with the Action Detector Tubes. A special calibration permits the use of most of the Action tubes with only two pump strokes. To ensure a fast and simple reading only two warning markings are printed on the Action Tubes. A third mark “ETW” is newly printed on the Action tubes. ETW means “Einsatztoleranzwert” according to the German guide-line vfdb 1001
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Worli, Mumbai, Maharashtra