Roll-A-Meter Air Indicator

This lightweight aluminum Roll-A-Meter concrete air indicator is used to determine the air content of concrete mixes, and is recommended for concrete containing lightweight aggregate, air-cooled slag or highly porous aggregate. The meter's fast acting one-piece, self-locking stainless steel clamps assure a watertight seal between the top section and bowl. A see-through window in the neck has easy to read engraved scale graduated from 0 to 9% with .25% sub-graduations. A durable plastic 手提箱 with a tough die cut closed cell hard foam insert protects the meter and its accessories.
组件包括:
Meter, 手提箱, 捣固杆, 挡板漏斗, 花样酒吧, calibration measuring vessel, 注射器, 16 oz. measuring cup, spanner wrench and manual.