---
product_id: 43252068
title: "CRACKMON 4020A Concrete Crack Monitors (50-Pack), Heavy-Duty Crack Gauge for Civil Infrastructure, Foundations, Buildings and Historic Preservation, Bulk Packaged"
brand: "buildera"
price: "3.10 DT"
currency: TND
in_stock: false
url: https://www.desertcart.tn/products/43252068-crackmon-4020a-concrete-crack-monitors-50-pack-heavy-duty-crack
store_origin: TN
region: Tunisia
---

# Precision: ±20mm/±10mm Unique ID for traceability Made in the USA CRACKMON 4020A Concrete Crack Monitors (50-Pack), Heavy-Duty Crack Gauge for Civil Infrastructure, Foundations, Buildings and Historic Preservation, Bulk Packaged

**Brand:** buildera
**Price:** 3.10 DT
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Monitor with Confidence: Your Infrastructure's Best Friend!

## Quick Answers

- **What is this?** CRACKMON 4020A Concrete Crack Monitors (50-Pack), Heavy-Duty Crack Gauge for Civil Infrastructure, Foundations, Buildings and Historic Preservation, Bulk Packaged by buildera
- **How much does it cost?** 3.10 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/43252068-crackmon-4020a-concrete-crack-monitors-50-pack-heavy-duty-crack)

## Best For

- buildera enthusiasts

## Why This Product

- Trusted buildera brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Design:** Heavy-duty acrylic construction for long-lasting use.
- • **Precision Measurement:** Accurate caliper range for horizontal and vertical monitoring.
- • **Traceable Engineering:** Unique serial ID ensures forensic accountability.
- • **Versatile Application:** Ideal for civil, structural, and geotechnical engineering.
- • **High-Volume Efficiency:** Bulk pack of 50 for extensive projects.

## Overview

The CRACKMON 4020A Concrete Crack Monitors come in a bulk pack of 50, designed for high-volume use in civil and structural engineering. With precision measurement capabilities and unique traceability features, these heavy-duty acrylic gauges are essential for monitoring the integrity of foundations, buildings, and historic structures.

## Description

FROM THE MANUFACTURERThe new Buildera CRACKMON 4020A is a heavy-duty, patent-pending, structural crack monitor to measure displacement in foundations, concrete, stucco, masonry, plaster, wood and steel structures. Ideal for restoration, seismic retrofitting, or forensic analysis of differential settlement, the CRACKMON 4020A is an indispensable tool for structural, civil and geotechnical engineers, building contractors, trades professionals, commercial property owners, building inspectors, or homeowners. Buildera precision manufactures each CRACKMON 4020A in the USA using premium-quality materials and workmanship for superior engineering accuracy and traceability.FEATURES AND BENEFITS Extreme durability—50% thicker proprietary polymer compared to classic model (4.5 mm vs 3 mm) New 2D-plus polar magnitude and X-Y displacement measurement grid with precision TickPoints improve measurement accuracy Vibrant rich-black and red UV-cured printing on opaque white background doubles the contrast, enhancing legibility in a wide range of lighting conditions Unique serial IDs provide unprecedented engineering traceability in a crack monitor—essential in forensic studies and documentation of client reports Integrated GeoQR technology simplifies access to online instructions and easy re-ordering using a smartphone Flexible mounting arrangement optimized for #8(M4) or #6(M3.5) tamper-resistant fasteners and epoxy (sold separately) Available tamper-resistant Torx Plus stainless-steel screws and anchors made in USA Optional impact-absorbing thermoplastic drilling guide aligns hole centers while hammer-drilling concreteWHAT'S INCLUDED(50) CRACKMON 4020A Crack Monitors with installation instructions and crack tracking sheetRECOMMENDED ACCESSORIES BUILDERA STRUPOXY UPC 0816291010099

## Features

- Box of (50) new CRACKMON 4020A heavy-duty crack monitors, instructions, and crack progress chart
- Manufacturer-direct bulk package for high-volume use in civil, structural, geotechnical engineering and surveying
- Precision caliper measurement range of ±20 mm (±0.79") horizontal and ±10 mm (±0.38") vertical
- Unique CRACKMON serial ID for engineering and forensic traceability
- Designed and made in the USA. Epoxy and fasteners sold separately. Not for resale.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | BUILDERA |
| Part Number | UPC 816291010198 | EAN 0816291010198 |
| Item Weight | 1.2 ounces |
| Product Dimensions | 6.02 x 1.22 x 0.35 inches |
| Is Discontinued By Manufacturer | No |
| Color | White / Transparent |
| Material | Heavy-duty acrylic |
| Item Package Quantity | 50 |
| Number Of Pieces | 50 |
| Measurement System | Metric |
| Compatible Fastener Range | #6 - #8 SS SMS. Fasteners not included. |
| Included Components | Installation instructions and crack progress chart |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![CRACKMON 4020A Concrete Crack Monitors (50-Pack), Heavy-Duty Crack Gauge for Civil Infrastructure, Foundations, Buildings and Historic Preservation, Bulk Packaged - Image 1](https://m.media-amazon.com/images/I/61Wg27jz33L.jpg)
![CRACKMON 4020A Concrete Crack Monitors (50-Pack), Heavy-Duty Crack Gauge for Civil Infrastructure, Foundations, Buildings and Historic Preservation, Bulk Packaged - Image 2](https://m.media-amazon.com/images/I/71BNGd1Lj2L.jpg)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-02-02*