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Gilson's high-quality Type B Pressure Meters measure concrete air content and include many value-added improvements. Our standard model HM-30 now features the exclusive Gilson Gorilla Gauge, and a new, more affordable model HM-30S offers an American-made stainless steel gauge. Other features of the two units are identical. Long-lasting stainless steel clamps adjust quickly and are less expensive to replace. 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 the Gilson meters exceed ASTM requirements. Calibration Vessel, Calibration Tubes, 24in (610mm) Tamping Rod, Aluminum Straightedge, Syringe for water, Carrying Case and operating instructions are all included. Cast aluminum chamber volume is 1/4ft³ and can also be used for unit weight and yield determinations. Sturdy plastic carrying case holds meter with all accessories securely in die-cut foam padding. Case Dimensions: 27x14x14in (686x356x356mm), WxDxH.
HM-30 Concrete Pressure Meter features our exclusive Gorilla Gauge, a rugged German-engineered gauge with precision jeweled movement and a high-strength Polymid B molded housing that is waterproof and rustproof. Micro-Adjustable calibration screws ensure superior accuracy and save time during calibration and maintenance procedures. The Gorilla Gauge is ANSI rated B40 Grade 2A with accuracy ±1/2% of full scale. The dual-layer safety glass lens is sealed behind a threaded bezel with O-ring.
HM-30S Concrete Pressure Meter uses a dependable and accurate American-made gauge with stainless steel housing. The sturdy industrial rack and pinion mechanism is accurate to ±1% of full scale. A threaded bezel with gasket seals the safety glass lens.
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