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HUMBOLDT HC-2939 Plastic Crack Monitor with Record Sheet - Crack Monitors
HUMBOLDTCrack Monitors

HUMBOLDT HC-2939 Plastic Crack Monitor with Record Sheet

The HUMBOLDT Concrete Crack Monitor is a plastic crack monitor designed for measuring crack movement in concrete structures. It features black and red graduations and includes a record sheet for tracking…

SKU 3G-OTH-170506

Also listed as: HC2939 · HC 2939

Brand
HUMBOLDT
Item
HC-2939 Plastic Crack Monitor with Record Sheet
Part Number
HC-2939
Category
Crack Monitors
Available to Order
Also known as:HC-2939HUMBOLDT
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

HUMBOLDT
Manufacturer Part Number
HC-2939
Type
White, Black/Red, Record Sheet, HC-2939, Plastic
Includes
Record Sheet
Graduation Color
Black/Red

Technical Documents

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HUMBOLDT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HUMBOLDT Concrete Crack Monitor is a plastic crack monitor designed for measuring crack movement in concrete structures. It features black and red graduations and includes a record sheet for tracking measurements. This product is identified by manufacturer part number HC-2939.

Frequently Asked Questions

What is HUMBOLDT Concrete Crack Monitor used for?

The HUMBOLDT Concrete Crack Monitor measures crack movement in concrete structures. It is used by civil engineers and maintenance teams to track structural shifts in buildings, bridges, and pavements, helping assess stability and prevent failure.

What are the specifications of HUMBOLDT HC-2939 Crack Monitor?

The HUMBOLDT HC-2939 Crack Monitor is a plastic device with black/red graduations. It includes a record sheet for tracking measurements. The manufacturer part number is HC-2939, and it is designed for monitoring concrete crack movement.

Where to buy HUMBOLDT HC-2939 Crack Monitor worldwide?

3G Electric supplies the HUMBOLDT HC-2939 Crack Monitor worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this concrete crack monitoring device.

How to install HUMBOLDT Concrete Crack Monitor?

Clean the concrete surface, apply adhesive to the monitor's back, and press firmly across the crack. Align the zero mark with the crack edge. Record initial readings on the supplied sheet. Check periodically for movement.

Used in

Common applications for HUMBOLDT
Geotechnical field investigation — HUMBOLDT compaction and density gauge (SKU 5DPH7) for in-situ soil density measurement per ASTM D6758.
Concrete quality control laboratory — HUMBOLDT plastic cylinder molds (SKU 787YX5, 12 in x 6 in) for casting compressive strength specimens.
Structural health monitoring — HUMBOLDT crack monitor (SKU 38YZ65) for tracking crack movement in concrete bridges and buildings.
Soil testing laboratory — HUMBOLDT steel cylinder molds (SKU 5DNU5, 6 in x 3 in) for forming soil specimens for density analysis.
Construction materials testing — HUMBOLDT plastic cylinder molds with domed lids (SKU 5DPC5, 6 in height) for mortar or concrete specimen preparation.
High-volume specimen casting — HUMBOLDT plastic cylinder molds (SKU 5DPC6, 4 in x 2 in, pack of 84) for small-scale concrete or soil tests.
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HUMBOLDT Products

3G Electric supplies HUMBOLDT crack monitors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Clear crack monitor with black and red millimeter graduation marks starting at 0 mm. Includes a record sheet for tracking measurements. Used to monitor crack movement in concrete structures such as buildings, bridges, and pavements
HUMBOLDT
Clear crack monitor with black and red millimeter graduation marks starting at 0 mm. Includes a record sheet for tracking measurements. Used to monitor crack movement in concrete structures such as buildings, bridges, and pavements
This crack monitor measures crack movement in concrete structures. It features a clear body with black and red graduation marks in millimeters, starting at 0 mm. A record sheet is included for documenting measurements over time
HUMBOLDT
This crack monitor measures crack movement in concrete structures. It features a clear body with black and red graduation marks in millimeters, starting at 0 mm. A record sheet is included for documenting measurements over time

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