iGrav® Superconducting Gravimeter and remote field enclosures: Zero Drift*, no Liquid Helium requirements ever! iGrav®s have Stable Calibration factor, low noise approaching NLNM, broad frequency response and are self-leveling to sub arc-seconds. Essential Gravity measurement in real time for long term trends in Hydrology, Magma, Glaciology, Sea Level, Atmosphere, and Altitude. Now in use in any environment from Deserts, Jungles, Volcanoes, Arctic, to International Standards laboratories, the iGrav® is ready for your needs! Real-time 1Hz Gravity data output is now available. Visit GWR’s booth 624 and discuss your application! *Actual users report drift as less than 0.5 µgal per month. Import/Export require no US License- NLR worldwide.