With its new sampling cap, the the ChemPro100 can be used to find unknown gases/vapors and bag them into a Tedlar bag.  Gas/vapor identifiers are often criticized for not being able to identify unknowns. This can be due to random or “blind” sample collection without using a detector, filling a Tedlar with a PID that is “blind” to many chemicals or collecting a sample below the detection threshold of the identifier.  The ChemPro100 with the sampling cap fitted addresses these issues, its unique “Trend” function allows it to be used as a powerful broadband gas/vapor sniffer to make sure the areas of highest concentration get into the Tedlar bag for further analysis.