The Model 3102/O and Model 3102/B are Ludlum's latest Tritium in Air Monitors. Similar to the Model 3101 and Model 3100, both monitors have a maintenance-free diaphragm air pump to pull air through the 250 cc tritium chamber, and air flow is measured internally with a mass-air flow sensor. The Model 3102/O has a 12 second response time and a resolution of 10 μCi/m3, while the Model 3102/B has a 60 second response time and a resolution of 1 μCi/m3.
