The Lightweight Aluminum Calibrator used in the field to check concrete air meter accuracy. The sturdy unit is accurately machined to exact dimensions. With a calibrator placed within the water-filled base, air meter gauge should register 5% air. Two calibrators are used in a 0.25ft³ meter for a 10% air reading.
- Provides quick readings
- Lightweight and sturdy
Dimensions: 5.63 x 3.25in (143x83mm) height x diameter.
Meets Test Methods:
ASTM C 231