S-detec liquid gas leak detectors detect gas leaks in hard-to-reach areas. Flexible tube extends for hard-to-reach areas. Detects even on very small leaks and vertical surfaces. Easy to use, non-toxic, non-corrisive, non-fammable and free of chlorine. S-detec liquid evaporates cleanly after testing. Composition : Distilled water, glycerine and others Temperature range : -2? to 93? (27? to 200?)