Product Description
Technical Specification
Instruction Manual
Data Sheet

Elcometer 121/4 Standard & Top Paint Inspection Gauges (P.I.G.)

The Elcometer 121/4 Paint Inspection Gauge (P.I.G) is a hand-held paint gauge that offers a quick, versatile method of coating examination and measurement in a portable, easy-to-use format.

The paint inspection gauge is available in two versions, Standard and Top:

Standard paint gauges can be used for microscopic coating examination and destructive measurement of coating thickness.

Top inspection gauges have the same functionality as standard paint gauges and can also be used for cross hatch adhesion testing using optional tools.

Key Features

  • Compact and convenient, ideal for paint thickness measurement in confined areas
  • Made of anodised aluminium for durability
  • Built-in 50x micropscope with rotatable graticule scale
  • Bright white LED light source for clear vision through the microscope
  • The standard paint inspection gauge holds a single cutting tool with built-in storage for 3 cutting tools
  • The top model paint gauge cutting tools are mounted on a rotary tool holder within the body of the gauge, allowing rapid change from one test to the next
  • The top model tool holder accommodates three cutting tools plus an optional cross hatch cutting tool

Assessing you results using the Elcometer 121/4 Paint Inspection Gauge

Destructive dry film thickness test

Position the gauge vertically
so that the microscope lens
is over the cut.

Look through the microscope lens and rotate the focus adjuster until the cut is visible clearly.

Elcometer 121/4 Paint Inspection Gauge
Elcometer 121/4 P.I.G.Elcometer 121/4 Paint GaugeElcometer-121-in-action

Technical Specification

  Description   Certificate
  Elcometer 121/4 Standard P.I.G. Elcometer 121/4 Top P.I.G.  
Part Number A121---S A121---T ο 
Range 2 - 2000µm (0.08 - 80mils) Accuracy is dependent on tool cut angle, half a division
Dimensions Standard: 110 x 75 x 30mm (4.3 x 3 x 1.2”), 369g (13oz) Top: 110 x 75 x 40mm (4.3 x 3 x 1.6 ), 383g (13.5oz) 
Packing List Elcometer 121/4, cutters 1, 4 and 6, x50 microscope, 4 x AG3 batteries for lamp (fitted), hexagonal wrench, black marker pen, wrist strap, carry case and operating instructions

Standard: AS1580.108.2, ASTM D 4138-A, BS 3900-C5-5B, DIN 50986, ISO 2808-5B, ISO 2808-6B, JIS K 5600-1-7, NF T30-123
Top: as above plus AS 1580.408.4, AS 3894.9, BS3900-E6, EN 13523-6, ECCA T6, ISO 16276-2, ISO 2409, NF T30-038

Standards in grey have been superseded but are still recognised in some industries

ο Optional Calibration Certificate available


Part Number Description Angle Measurement Range Graticule
Scale Factor
T99915761-1 Tungsten Carbide Cutter No 1 45° 20 - 2000µm (1 - 80mils) 20µm (1mil) ο
T99915761-4 Tungsten Carbide Cutter No 4 26.6° 10 - 1000µm (0.5 - 35mils) 10µm (0.5mil) ο
T99915761-6 Tungsten Carbide Cutter No 6 5.7° 2 - 200µm (0.1 - 8mils) 2µm (0.1mil) ο
Part Number Description   Coating Thickness Standard Certificate
T99913700-1 X-Hatch Cutter, 6 teeth x 1mm   0 - 60µm (0 - 2.4mils) ISO ο
T99913700-2 X-Hatch Cutter, 11 teeth x 1mm   0 - 50µm (0 - 2.0mils) ASTM ο
T99913700-3 X-Hatch Cutter, 11 teeth x 1.5mm   0 - 60µm (0 - 2.4mils) - ο
T99913700-4 X-Hatch Cutter, 6 teeth x 2mm   50 - 125µm (2.0 - 5.0mils) ASTM ο
T99913700-4 X-Hatch Cutter, 6 teeth x 2mm   0 - 60µm (0 - 2.4mils) ISO ο
T99913700-4 X-Hatch Cutter, 6 teeth x 2mm   61 - 120µm (2.4 - 4.7mils) ISO ο
T99913700-5 X-Hatch Cutter, 6 teeth x 3mm   121 - 250µm (4.8 - 9.8mils) ISO ο
K0001539M001 Adhesion Tape (1 roll)     ASTM  
T9998894- Adhesion Tape (2 rolls)     ASTM  
K0001539M002 Adhesion Tape (1 roll)     ISO  
T9999358- Adhesion Tape (2 rolls)     ISO  


ο Optional Claibration Certificate available