Field hardened-temperature characterized from 0° to 50° C Portable/weighs less than 15 lbs Built-in mrocroprossor controlled compressor to automatically generate and control pressure Modular design- choose the option you need Unsurpassed accuracy to 0.025% of pressure reading or 0.01% of full scale electrical value Pressure control stability up to 0.002 inches of water column (Quick Cal 191/196) or 0.02 inches of water column (Quick Cal 190/15) Monitor up to three parameters simultaneously Bright, sunlight readable high resolution, backlit paperwhite display Documenting models interface with leading CMS packages, including Blue Mountain, AMS and Cornerstone > Each Unit Includes Batteries and Charger Test Leads 220V Transformer