OPERATION/MAINTENANCE MANUAL. PORTABLE TRITIUM MONITOR. MODEL RS400-HTO with Alkaline Battery Option. OVERHOFF TECHNOLOGY CORPORATION. The air contamination in TL area, determined using RS400-HTO Overhoff TGM, was lower than Users Manual: Landfill gas emission model: Version 2.1(1998),For the past 27 years, Overhoff Technology Corporation (OTC) has offered the world's largest selection of monitors for the detection of airborne tritium. The RS400-HTO is a portable tritium air monitor with an in-line desiccant no manual zero adjustments; Offset potentiometer control included; CE Marked. US Tumblr user growth rate is estimated to slow down to 4.1%. #Tritium Stack Monitor. overhoff-credentials · 8 months ago. Text. Carbon-14 in Air Monitors. PERSONAL PROPERTY, OWNED, OVERHOFF TECHNOLOGY CORP, MONITOR, FLAT FERRET PERSONAL PROPERTY, OWNED, SPACE SAVERS MANUAL SYSTEMS, SHELVING SYSTEM,