LM-300/330 Kalem Tip Portatif Sertlik Ölçüm Cihazı
The LM 300 is a Pen type designed hardness tester with D device. It has a 1.77” large-screen OLED color display. The D impact device is used in difficult to access areas of measurements. LM 300 is accurate in any impact direction 360°. It automatically identifies impact direction and gravity compensation. LM300 hardness pen tester conforms to ASTM A956 and GB/T 17394-1998.
The following materials can be selected: Steel / Cast Steel, Gray Cast Iron, Nodular Cast Iron, Cast Aluminum, Brass, Bronze, Copper, Stainless Steel, Forged Steel and Tool Steel*. LM 300 Hardness Tester Kits Include: main device, D Type Impact Device , Test Block with HLD value, Small supporting ring, Charger, Cleaning brush, Instruction Manual, Warranty Certificate, Certificate of Conformity, Instrument Carrying Case.
Technical Specifications 
Measuring Method: Leeb hardness testing method 
Hardness Scale: HL, HB, HRB, HRC, HV, HS Strength (σb). Measuring Range: HLD (200-960) HRC（19.8-68.5） HB（30-651） HV（80-976） HS （26.4-99.5） HRB（13.5-100）σb (375-2639). 
Impact Device: D type impact device (Standard); 
Accuracy: Measuring Error﹤6HLD (HLD=800), Repeatability ﹤6HLD (HLD=800) 
Measuring Direction: Vertically downward, inclined downward 45 degrees, Level, inclined upward 45 degrees, vertically upward, 360 degrees by manual setting（Only for LM330）. 
Material: Steel& Cast Steel, Stainless Steel, GC IRON, NC IRON, Cast Aluminum alloy, Copper-zinc alloy, Copper-tin alloy, Brass, Forged Steel, Alloy Tool Steel. 
Resolution: 1HL, 1HV, 1HB, 0.1HRB, 0.1HRC, 0.1HS 
Display: OLED full color dot matrix screen 
Memory: 1000groups (each group includes 2-6 testing values and 1 average value) 
Communication: USB 2.0 
Power: Polymer lithium battery, Capacity of 600 MA/H, voltage: 3.7 V, or AAA Alkaline Batteries