The UT-3000 Mercury UltraTracer provides a com- pact and reliable tool for measuring mercury in gases at ultra trace levels.Utilizing the high per- formance GoldTrap amalgamation module and an optimized state-of-the-art AA-mercury vapor detector the UT-3000 UltraTracer offers detection limits at sub-ng/m3 (ppq-parts per quadrillion) levels.