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	Micromanometer DP-CALC TSI Model 5825. Measure differential and static pressure from -15 to 15 in. 
 . H2O (-3735 to +3735 Pa).
 . Calculate and display velocity when using a Pitot tube.
 . Calculates flow, variable time constant, statistics, data logging with time and date stamp, stores 12,700+ samples and 100 test IDs.
 . Progammable K factors.
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	Micromanometer DP-CALC TSI Model 5815. Measure differential and static pressure from -15 to 15 in. 
 .H2O (-3735 to +3735 Pa).
 . Calculate and display velocity when using a Pitot tube.
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	Micromanometer DP-CALC TSI Model 8715. The 8715 features an auto-zeroing pressure sensor that increases measurement resolution. 
 . Accuracy along with an intuitive menu structure for ease operation.







