Supports the following standards: ASTM C192, ASTM C231, AASHTO T152 The H-2787 air meter is one of the most precise air content measuring devices available. With heat-treated, cast aluminum construction and cast-in handles on the base, the H-2786A is heavy duty, yet lightweight, and easy to handle. This air meter utilizes the best clamping system available, with large stainless steel clamp levers and a holding capacity of 2500 lbs. each. This clamping system provides an easy, dependable operation. Employing the use of a superior, high-volume Pump, this system makes operation efficient yet rapid. The meter includes a large, accurate pressure gauge with safety glass and bold color dial face. Color coded for entrapped and entrained air readings. The H-2787 air meter is furnished complete with the following items: Type B pressure meter Precisely molded polyethylene case with inner molded reinforced walls to hold the meter and accessories in place. Calibrated Vessel Calibration Outside Tube Calibration Inside Tube Strike-off Bar 24" Long Tamping Rod 5/8" diameter rounded to a hemispherical tip at both ends 3 oz. Bulb Syringe 16 oz. Rubber Mallet