Part No. GAUD-30HG 0-30 Inch Hg Vacuum, Digital Pressure Gauge (±0.25% full scale accuracy) Easy to read digital display eliminates the uncertainty guessing where the pointer lies Features • ±0.25% full scale accuracy • 316 stainless steel wetted parts • Battery life of 2500 hours • Extruded aluminum case, polycarbonate cover • 1/4" Male NPT lower mount GAUD-30HG Specifications Vacuum Range 0 to 30 In Hg (0 to 762 mmHg) Accuracy ±0.25% of Full Scale ±1 least significant digit Process Connection 1/4" male NPT bottom connection Dial Size 2.88 in (7.32 cm) Batteries 2 AA Battery Life 2500 hours Temperature range -4 to 185 °F (-20 to 85 °C) Construction ABS Plastic, Aluminum, Stainless Steel Gauge type Digital Ralston Instruments Inc. | ralstoninst.com | Toll Free 800-347-6575 | Phone 440-564-1430 | Fax 440-564-1480