The P5514B-70M is a hydraulic pressure comparator designed for bench-top and field calibration of pressure measuring instruments. It generates pressure from 0 to 10,000 psi (70 MPa) with a Vernier fine adjustment control that enables precise cardinal point calibrations. The instrument features a robust design with improved reservoir valve sealing, a 75 cc reservoir, and a 20 cc screw press displacement, along with tool-free rotating collar test port connectors that accept adapters for common NPT and BSP thread sizes. The P5514B-70M is equipped with Viton® O-ring seals and measures 11 × 11 × 10 inches (280 × 280 × 254 mm) with a weight of 11 lb (5 kg). This comparator is ideal for calibrating dial gauges, digital test gauges, and pressure transmitters in laboratory and field environments, offering a cost-effective alternative to traditional deadweight testers.