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The TSI DP-Calc™ Micromanometers measures static, total and velocity pressures as well as pressure drops across filters, coils, fans and diffusers


Each model of the DP-Calc combines a lightweight and durable design with an easy-to-read display. Advanced models feature volumetric flow rate, temperature, humidity and data logging.

DP-Calc Micromanometer 8715

The DP-Calc™ Micromanometer 8715 is one of the most advanced, versatile, and easy-to-use...

DP-Calc Micromanometer 5825

The DP-Calc™ Micromanometer 5825 allows you to easily make HVAC pressure measurements. This...

DP-Calc Micromanometer 5815

The DP-Calc™ Micromanometer 5815 allows you to easily make HVAC pressure measurements. This...

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Trade-In, Trade Up!

Turn the instruments you have into the one you want. Score 10% off the purchase of a new ventilation test or IAQ instrument simply by trading in your old unit.