Test Products International 645

Product Highlights

• TPI Model # 645
• Rugged Extruded Aluminum Housing
• Measure positive and differential pressure
• Push button zero for altitude correction
• Seven selectable units of measure to choose from: mmHg, inHg, kPa, mBar, PSI, inH2O, and mmH2O
• Easy-to-read LCD
• Backlight with auto shut off after 10 seconds
• Auto shut off after 30 minutes (except REC
• mode) to save battery life
• Record function stores maximum and minimum readings
• Data hold to freeze reading on LCD