We are an International Manufacturer, supplier and exporter of Gas Detector Tubes. The tubes of Gas Detector Tubes are calibrated for a fixed volume of air sample which is drawn using a sample draw pump. The scale on the glass tube reads the stain length in ppm of contaminant concentration. This method of measurement is simple, accurate and highly specific. In addition to the short term detector tubes, there are number of other UNIPHOS chemical detectors such as dosimeter tubes, dissolved substance detector tubes, charcoal tubes for chemical vapors, detector strips, air flow indicator tubes, etc, which we made available easily. We also do a proper spot check of toxic gas concentration at work place on specified intervals.