HM-33, ACM-4K Volumetair Air Meter is even lighter than metal Roll-A-Meter. Meets ASTM and AASHTO specifications. This Volumetair, volumetric air meter, accurately and economically measures air content in any type of concrete, including lightweight mixes. The unit weighs only 5.5lb (2.5kg) and is made of dimensionally stable PVC and fiberglass-reinforced plastic. The Volumetair is 1/3 the weight of similar brass units and 1/2 the weight of aluminum models. Base and top housing fit together with a leakproof O-ring seal and stainless steel over-center clamp assembly. Parts clean up easily with water. Base volume is 134 in³ (2,200ml), and sight tube has 0-9.5% x 0.25% calibration. The meter comes complete with Funnel, Syringe, Tamping Rod, Strike-Off Bar, Calibrated Cup, and Mallet in a Plastic Case.
