Fluke 719PRO-300G Electric Pressure Calibrator, 300 PSIG, 30 V DC, 9.5" x 4.4" x 2.8" Test pressure switches easily with easy-to-use switch test function Precision pressure adjust vernier for easy and accurate pressure calibration Pump cleanout ports reduce pump failures from moisture and fluid damage Precision temperature measurement with optional RTD probe Fluid trap included with the unit to mitigate chance of fluid damage in at-risk applications