# MountLaser CM-02 Acrylic Building Crack Gauge, 5-piece

MountLaser CM-02 is a five-piece acrylic gauge set for monitoring movement across building cracks. Its crosshair and graduated scale are intended to make changes in horizontal and vertical displacement visible over time, while the supplied listing describes mounting pegs and adjustment slots for installation.

- [Original product page](https://bargainpostbox.co.uk/product/mountlaser-cm-02-acrylic-building-crack-gauge-5-piece)
- [View offer](https://bargainpostbox.co.uk/visit/mountlaser-cm-02-acrylic-building-crack-gauge-5-piece)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Mountlaser
- Category: Tools & Garden > Hand Tools
- Price: 39.99 GBP
- Previous price: 49.99 GBP
- Discount: 20%
- Price checked: 2026-11-14T10:17:14.250Z
- Rating: 4.4 / 5
- Reviews: 27

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Crosshair and dual-axis graduations are designed to show horizontal and vertical displacement changes.
- The stated scale range is -25mm to +25mm.
- Transparent acrylic is intended to leave the marked scale visible when mounted over a crack.
- The listing describes fixing pegs and elongated slots to allow adjustment during installation.

## Pros

- A fixed reference line and graduations provide a direct visual way to record crack movement over repeated readings.
- Five pieces can support monitoring at several locations, subject to the selected listing containing the advertised set.

## Specifications

### Identity
- Brand: MountLaser
- Part number: CM-02
- Set style: 5PCS
### Measurement and material
- Scale range: -25mm to +25mm
- Material: sturdy thick acrylic sheet
### Dimensions and installation
- Weight listed: 272 g
- Package dimensions: 24 x 18.29 x 5 cm; 272 g
- Mounting features: pre-set fixing pegs, reserved elongated mounting slots on both ends
### Power
- Batteries included: No

## Before you buy

- The stated scale range is for the gauge's markings. The listing does not specify a reading resolution or measurement accuracy, so do not treat it as a calibrated surveying instrument or a diagnosis of structural safety.

## A good fit for

- Homeowners tracking visible crack movement over time
- Surveyors, builders and property inspectors wanting a wall-mounted visual monitor

## Less suited to

- Buyers needing a stated measurement resolution, calibrated accuracy or a structural safety assessment from the gauge alone

## Customer feedback

Aggregate ratings are generally favourable, with most ratings in the top category, but a smaller share are lower. Without customer-comment evidence, these figures do not establish specific strengths, faults or reasons for ratings. For a visual crack monitor, buyers should assess whether the stated scale and mounting approach meet their monitoring needs.

## Frequently asked questions

### What is the stated measurement range?
The listing gives a scale range of -25mm to +25mm. It does not state a separate accuracy or graduation interval.
### What is the gauge intended to monitor?
It is presented for tracking horizontal and vertical changes in cracks on walls and other masonry or concrete surfaces over time.
### Does the listing describe mounting parts?
Yes. It claims pre-set fixing pegs and elongated mounting slots. Check the selected listing for confirmation of the delivered set.
### Does it need batteries?
The supplied details say batteries are neither included nor required.

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- [Mountlaser 1pc Standard Crack Monitor Tell-Tale, Acrylic Crack Gauge \| for Wall/Concrete Crack Displacement Monitoring, Includes Screws, For Building Structural Safety Inspection](https://bargainpostbox.co.uk/visit/mountlaser-cm-02-acrylic-building-crack-gauge-5-piece)
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- [Crack Monitoring Record, 3Pcs Crack Measurement Tool, Crack Width Gauge, Clear Acrylic Corner Crack Comparison Caliper Easy to Use](https://bargainpostbox.co.uk/visit/mountlaser-cm-02-acrylic-building-crack-gauge-5-piece)
- [Heavy-Duty Building Cracks Monitor for Concrete Masonry, 4 Pack \| Cracks Monitor Linestorm Corner Tell Tale Measurement for Wall Cracks Width Instrument Part](https://bargainpostbox.co.uk/visit/mountlaser-cm-02-acrylic-building-crack-gauge-5-piece)

## Images

![MountLaser CM-02 Acrylic Building Crack Gauge, 5-piece — 1](https://bargainpostbox.co.uk/i/UNhpsWxKjM66oVjoCGowE4Y1HzoPwZOOBEiPBcynukE7lprnwFiLB2j8Mnpo95JyNZaEzN1C7ylHHQ-Cp8xnlmmXBChYTmKR5l04i67mAae2_bHn.jpg)

![MountLaser CM-02 Acrylic Building Crack Gauge, 5-piece — 2](https://bargainpostbox.co.uk/i/4ehUH4PrQadyBkZHcvqhbfMiSvE95qhYN0DbHVCv0v4WCXJxsQdCLlldTJX0PGDquBkcroE-WzlE_PkJxCEFFkCzEqnfVMIdQ022TOnyclHT_sz8.jpg)

![MountLaser CM-02 Acrylic Building Crack Gauge, 5-piece — 3](https://bargainpostbox.co.uk/i/07JtDh53yuJLeNCBug474RWzhbnpum0JKhPOq7ghPr3hrgUa31witZPwZwxHOZLqUe_QyQnHUIRUG8W9kaUjGHBzn2qItBYilc1xOeNOQwRFf4oL.jpg)

![MountLaser CM-02 Acrylic Building Crack Gauge, 5-piece — 4](https://bargainpostbox.co.uk/i/W8-AI5FemM-wfBd2FGpmynokWBpNtvaYMxl7rp-DNsuS9vtGSlQXR7WIqkim-yXpQOScSNlGLxkKTJJZgayZR_jQKm6kB-gw9C8yMvEErT9tPFVN.jpg)

![MountLaser CM-02 Acrylic Building Crack Gauge, 5-piece — 5](https://bargainpostbox.co.uk/i/QPhi_qsFAfqc9qAGewYt6waBDgcbkv9yd14_PUBfkSqHCja-2h_KaQB9HINT0H0yFsRRxPaDkkIc5mEwuGweyren8mZ9mfT8LgTNkn51mxUHHqjB.jpg)

![MountLaser CM-02 Acrylic Building Crack Gauge, 5-piece — 6](https://bargainpostbox.co.uk/i/5Qv2qfNAQs01XXhI17E4426XuMBD7z08AhS2XDqlMHH5cHMXrq6HPvWexJCgiO-dBvBuC4dCkjelzZ7KK8V0qyKtgzfx21vFZDwfWEeUdeXTMrAg.jpg)

![MountLaser CM-02 Acrylic Building Crack Gauge, 5-piece — 7](https://bargainpostbox.co.uk/i/iChTN2jLQm40AeHHLwfek0-xscH64j96ZFj46csgwuwhN7Rpuhhx8IP8Gkwxi6r_hoVALuFns71ycr_1uhkHlnEj0F90taAjziTQbmfC7tIltAwz.jpg)