LR104 Portable Hardness Tester


LR104 portable hardness tester can directly measure different types of hardness value including HRB, Leeb (HL), Brinell (HB). In accord with international standards it’s also can meet the “Leeb hardness tester technical conditions ZBN7l 010-90” and the “metal in the hardness test method GB / T 17394-1998” Leeb hardness standard JB/ T9378-2001 standards which are issued by the Ministry of Machinery Industry and National Quality and Technical Supervision.

With low-power design and high-performance Li batteries which can achieve ultra-long standby time work it has more compact and flexible design increases user flexibility.


  • All English menu display is easy to manipulate. OLED display for better use in any environments.
  • With Micro USBcommunication port.
  • Bluetooth module included, it can communicate with Bluetooth printer, mobile phone and PC.
  • Large capacity memory can store 373~2688 groups (impact average times32~1) of information including single measured value, mean value, testing date, impact direction, impact times, material and hardness scale etc.
  • Conversion to tensile strength (U.T.S).
  • Provide software calibration function.
  • High-performance Li battery with charging circuit providing extra-long working time and standby time. Battery sign, display the current remaining capacity.
  • PC Software can be equipped to meet the higher demands in quality assurance, activities and management.



LR104 Portable Hardness Tester

[Technical Specification]

  • Measuring range: 170~960 HLD
  • Measuring direction: 360°
  • Hardness Scale: HL,  HRB,  HB
  • Display: dot matrix LCD 128×64 dots
  • Data storage: 2688 groups maxim, relative to impact times 32~1
  • Charging power supply: 5VDC,220VAC
  • Charging time: 4~5h
  • Battery: 3.7V,Li(350mAh)
  • Using temperature: 0 ~ 40℃
  • Storage temperature: -25 ~ 70℃
  • Continuous working period: 30h
  • Communication port: Micro USB,Bluetooth
  • Outline dimensions: 253 × 37 × 36mm
  • Wight: about 258g

LR104 Portable Hardness Tester

Comparison table

Hardness scaleHL, HRB, HB
Measuring rangeHLG(170 ~ 960), HRB(47.7 ~ 99.9),HB(90 ~ 646)
ClockReal-time data and time
Auto off3~5 Minutes without any operation
Data InterfaceUSB, Bluetooth
PowerRechargeable Li Battery, 3.7V
Memory373~2688 group (Impact times: 32~1)
Display128 × 64 OLED
Continuous Working timeAbout 30h
Charging time4 ~ 5hours
Overall dimensions146 × 30 × 25 mm




Standard Configuration

1Main uni.1
2Small support ring1
3Cleaning brush (I)1
4High value test block1
6Communication cable1
Optional Configuration8Printer1

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