
The Elcometer 900 Concrete Crack Microscope (part number W90018568-D) is a simple, graduated x50 magnification microscope with internal illumination, used to measure the width of cracks in concrete and similar surfaces. Crack width is a key indicator of the condition of concrete structures, since widening cracks can signal structural movement or distress, so being able to measure them accurately on site informs inspection and maintenance decisions.
The Elcometer 900 Concrete Crack Microscope uses a scaled lens with graduated reticules. The user views the crack, counts the number of graduated reticules it spans on the scale, and calculates the width from that count, giving a quick and direct measurement in the field. The x50 magnification of the Elcometer 900 Concrete Crack Microscope resolves fine cracks, and the internal illumination lights the surface so readings can be taken without a separate light source.
Powered by one LR03 (AAA) battery, the Elcometer 900 Concrete Crack Microscope measures 120 x 43 x 115 mm and weighs 145 g, making it easy to carry during structural and surface inspections. Used by concrete and structural inspectors, the Elcometer 900 Concrete Crack Microscope is supplied by BAMR, South Africa's authorised Elcometer distributor.
Elcometer 900 Concrete Crack Microscope
The Elcometer 900 Illuminated (x50) Microscope is a simple, graduated x50 magnification microscope with internal illumination.
- x50 magnification microscope
- Internal illumination
- Graduated reticules Allows the user to quickly determine the width by counting the number of graduated reticules on the scaled lens and then calculating the value
When to use the Elcometer 900
You reach for the Elcometer 900 when you need to measure the width of a crack in concrete or a coating, not just see it. At x50 magnification with a graduated reticule and internal light, it turns a visible crack into a counted, scaled value on site.
- 1Graduated reticule measures widthThe scaled lens lets you count reticules across a crack and calculate its width, turning a subjective look into a number you can record and trend over time.
- 2Internal illuminationBuilt-in light lets you read fine cracks in shaded structures and poorly lit site conditions where ambient light would not resolve the edges.
- 3x50 magnificationFifty times magnification resolves narrow cracks that the eye cannot size accurately, which matters when a crack width drives a repair decision.
Lower-budget alternatives


Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
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When to use this
When to use the Elcometer 900
You reach for the Elcometer 900 when you need to measure the width of a crack in concrete or a coating, not just see it. At x50 magnification with a graduated reticule and internal light, it turns a visible crack into a counted, scaled value on site.
- 1Graduated reticule measures widthThe scaled lens lets you count reticules across a crack and calculate its width, turning a subjective look into a number you can record and trend over time.
- 2Internal illuminationBuilt-in light lets you read fine cracks in shaded structures and poorly lit site conditions where ambient light would not resolve the edges.
- 3x50 magnificationFifty times magnification resolves narrow cracks that the eye cannot size accurately, which matters when a crack width drives a repair decision.
Lower-budget alternatives


Ten minutes on a call with one of our specialists usually saves you from buying the wrong instrument.
Book a 10-minute callOr , our product assistant, for an instant answer.
Specifications
General
- Part Number
- W90018568-D
- Description
- Elcometer 900 Microscope
- Battery Type
- 1 x LR03 (AAA)
- Dimensions
- 120 x 43 x 115 mm
- Weight
- 145g
Frequently asked questions
What magnification does the Elcometer 900 provide?
The Elcometer 900 is a simple, graduated x50 magnification microscope with internal illumination.
What battery does the Elcometer 900 use?
It uses a single LR03 (AAA) battery.
How large and heavy is the Elcometer 900?
The instrument measures 120 x 43 x 115mm and weighs 145g.
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