SAMOA metered control valves are used at the end of hose assembly for measured dispensing of lubricants and antifreeze solutions. · Extensively and rigorously field tested. Reliable performance. · High precision machined measuring chamber with tight tolerances, quality gears and stainless steel shafts eliminate the need of calibration to adjust for fluid viscosity. · Sealed battery compartment and isolated electronic register for extended life. · Easy to read large character display, with batch, trip (resettable totalizer) and totalizer functions. · Rough TPE boot surrounds the entire meter for even greater durability. · Replaceable AAA batteries.