PalmSAT Pulse Oximeter w Standard Adult Finger Probe Beds Parts Accessories Dimension: 128mm*69mm*36 mm (No including Style:1 Pair (Left & Right) Dimension: 128mm*69mm*36 mm (No including Packing) ) and easier to use than spring push pull dynamometers that are in common use today * Dial continuously shows instantaneous force and holds the maximum force reading * This maximum reading should be manually recorded prior to resetting for the next test * Available with either an analog (dial) readout or a digital (LCD) readout * Choose either 50 lb unit for easy handling * Simple Easy 2 button operation * Flexible Uses 4 1 low battery indicator * This unit is equipped with a Standard Adult Finger Probe(Mfgr#8000AA)