The model 6700 is a handheld micromanometer with Bluetooth® wireless capability; it takes airflow and pressure readings with a pitot tube or the optional velocity grid. The grid is a cross shaped grid, similar to the one in the base of the capture hood, that makes it possible to take face velocity readings and average velocity readings at multiple points simultaneously. The Bluetooth® feature can send data to your smartphone or any Android-based device. The unit comes standard as part of the 6715 capture hood, but can also be purchased separately