Baseline® LCD HiRes™ hydraulic pinch gauge has an extended range 100 pound capacity. Unit has blue body and a 2-1/2? LCD gauge. LCD gauge features electronic zero calibration system max clear button toggle maximum and current read-out lb / kg toggle 2 AAA batteries (included). Unit has 2 year manufacturer?s warranty. The pinch gauge uses a hydraulic system to assure convenience product reliability and measurement accuracy and repeatability. Therapist can support the pinch gauge during testing yielding a more accurate result for all pinch tests. Use for tip key and palmer tests. Maximum reading remains until the unit is reset. The Baseline® pinch gauge results are consistent with published Baseline® and Jamar® studies. The strength reading can be viewed as pounds or kilograms. CE Certified. Comes in a protective carrying case. Digital LCD Gauge - ER™ 100 lb. Capacity - blue 2 year warranty