Type B Pressure Meters, ASTM C231; AASHTO T152
• HM-30 Gilson Pressure Meter is quality built, less expensive, and more accurate
• All components are supplied in our new sturdy and convenient carrying case
Gilson's higher-quality HM-30 Type B Pressure Meter for concrete air content determination has many improvements that make it a better buy. Long lasting stainless steel clamps adjust quickly and are less expensive to replace. Larger gauge in stainless steel housing is easier to read, calibrate and sealed to reduce need for maintenance. Pump with large, easy-grip handle builds pressure quickly and is shielded to keep dirt and water out of the piston area. Brass petcocks have stainless steel ball valves for accuracy and durability. Petcock handles are vinyl coated for more comfortable operation.
Dimensions and accuracy of these new units exceed requirements of ASTM. Included are: Calibration Vessel, Calibration Tubes, 24in (610mm) Tamping Rod, Aluminum Straightedge, Syringe for water, Carrying Case and operating instructions. Cast aluminum chamber is 1/4ft3 and may also be used for unit weight and yield determinations. Sturdy plastic carrying case holds meter with all accessories securely in die-cut foam padding. Traditional Watts Press-Ur-Meter is still available as HM-30W. Est. Ship Wt.: 32lb (14kg).