The 15,000 psi Crystal Engineering XP2i test gauge from AMETEK PMT Products has an accuracy specification of 0.1 percent of reading, with digital temperature compensation from 10 to 50 degrees C. It includes an ISO 17025, NIST-traceable calibration certificate with test data at five temperatures. It has an IP-67 rated, marine-grade enclosure (submersible up to 1 meter), a fast pressure safety valve mode and a leak-free pressure fitting connection. The dual display version adds leak rate, tare mode and differential pressure when connected to a second unit. An optional DataLoggerXP upgrade allows users to record 32,000 data points and export the data to an Excel document. An ultra-low power mode allows more than a year of continuous recording on one set of AA batteries. 800/444-1850; www.crystalengineering.net.