The Karol Warner Digital Manometer is used in conjunction with the Rice Test.
ASTM D2041/AASHTO T209
The Karol Warner Digital Absolute Pressure Manometer is used in conjunction with the Rice Test. The gauge displays vacuum in a range of 0 to 1,000mm of Mercury (Hg), with a resolution to 0.1mm Hg. The unit can be operated on a 9-volt alkaline battery for about 80hours of continuous use or with the included 115V60Hz AC adapter (230V/50Hz Adapter included for 230V models). The display is factory-set to shut off automatically after 18 minutes to conserve battery life.