Test Products International 635

Product Highlights

• TPI Model # 635
• Temperature Compensated to Improve Accuracy
• Measure Pressure of Air and Natural Gas
• Rugged Extruded Aluminum Housing
• Measure Positive Differential Pressure
• Push Button Zero for Attitude Correction
• Seven Selectable Units of Pressure to Choose From: mmHg, inHgm, kPa, mBar, PSI, inH20, and mmH20
• 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 Readings on LCD
• Three-year LImited Warranty