INSIZE Portable Hardness Tester Model # ISH-PHB Leeb, Rockwell HRC & HRB, Vickers, Brinell, Shore Resolution: 1HL, 0.1HRB, 0.1HRC, 1HV, 1HB, 1HS, 1MPa Accuracy: + 6HLD (HLD=800) Workpiece specifications: min. weight: 11lbs / 5kg min. thickness: 0.2" / 5mm min. thickness of layers: 0.03" / 0.8mm min. radius of curved surface: 0.43" / 11mm Working temperature: 32ºF-122ºF (0ºC-50ºC) Battery operated (rechargeable), with battery power indicator Large LCD display with back light includes: scale, hardness value, average value, test times, date, impact direction, material Output: Bluetooth Low and high limit settings Dimensions: 5.9055" x 3.1496" x 0.9449" Supplied in fitted storage case Includes the following... Main Unit Impact device "D" Cleaning brush for impact device Supporting ring for impact device Test Block