Dwyer Instruments' Series DAFM duct air flow measuring probes
Series DAFM duct air flow measuring probes use evenly distributed total and static pressure measuring points to deliver a measurement of flow in a duct. They can be installed from outside of the fan making them suited for when proper duct locations are unavailable. Probes fit ducts ranging from diameters from 6 in. to 96 in.
Dwyer Instruments; 800/872-9141; www.dwyer-inst.com