Portable Hardness Testers arrow Starrett Compact Hardness Tester

Compact Hardness Tester

Part#: 3811A
Supplier: Starrett
Calibration Certificate: available on request

The Starrett 3811A is a state of the art, digital portable hardness tester, designed to test the hardness of large, hard metal parts. The 3811A combines fast test speeds with ample memory and output. It performs tests that easily convert to most popular hardness scales such as Rockwell, Brinell, Vickers and Shore. This compact hardness tester is loaded with useful functions usually found only on high priced models. Digital Portable Hardness Tester.


  • Designed to test the hardness of large, hard metal parts
  • For steel & cast steel, alloy tool steel, stainless steel,
    grey cast iron, spheroidal iron, cast aluminum, brass, bronze,  wrought copper alloy
  • Leeb style tester designed for large, hard parts – load the impact body and place the impact device on your test piece
  • Easy to use keypad operation – push the button to begin testing and obtain reading
  • Large LCD display with back light
  • Combines fast test speeds coupled with ample memory and output
  • Performs tests that easily convert to most popular hardness scales such as Rockwell, Brinell, Vickers and Shore
  • State of the art, digital portable hardness tester.
  • Auto identification of impact device
  • Automatic conversions to Rockwell Brinell, Vicker and Shore
  • Automatic mean value as well as Min and Max values
  • Uses two AA alkaline battery with low power indicator
  • USB Ouput
  • Memory capacity (100 groups)
  • Optional: impact devices and special support rings


  • Accuracy: +/- 0.5% (referred to L=800)
  • Repeatability accuracy: +/- 4L units (L=Leeb)
  • Impact Direction: Vertical & Horizontal
  • Minimum Thickness of Sample: 1"
  • Measuring range: 200-960 HL
  • Tool steel should be about 1" thick solid material or larger
  • Operating temperature: 5-104 F
  • Dimensions: 5.96 x 2.938 x 1.270" (150 x 74 x 32mm)
  • Weight: 8.6 oz. (245 grams)

Available options

  • D+15 impact device
    Very narrow contact area with set backed measurement coil.
    Measures hardness in grooves and recesses.
  • DL impact device
    Needle front section with 4mm diameter and
    50mm length. For testing in confined spaces such as groove bases
    and special components such as gear wheels.
  • G impact device.
    For components such as heavy castings and
    forgings. Enlarged test tip and increased impact energy range.
    For lower quality finishes measuring in the Brinell range only.
    G block required.
  • C impact device
    Reduced impact energy probe for measuring hardness of coatings
    and surface hardened, thin wall or impactsensitive components.
    Applies superficial indentation.
  • DC impact device
    Very short for confined areas such as internal bores for various inside measurements.
  • special support rings
  • Leeb D Test Block
  • Leeb G Test Block

Ordering info

SKUDescriptionUnitPriceIn Stock
3811AStarrett Compact Hardness Testerpiece 0

More Recommendations for Hardness Testers in Canada