DwyerOmega HH Digital Manometer,0-100.0PSI Precise Air Measurement 477A-7

Product Highlights Measure Positive, Negative, or Differential Pressures Instant Selection from up to Nine English/Metric Units Stores 40 Readings in Memory for Later Reference Both Audible and Visual Overpressure Alarms Operates up to 100 Hours on a Single 9 Volt Battery New Adjustable Dampening Feature for Averaging Fluctuating Reading Each Unit Includes Detailed written instructions Wrist strap 9 volt alkaline battery