Elcometer 331 TH with Short Borehole Probe Concrete Covermeter & Half Cell with Short Borehole Probe

Drilling, fastening, or surveying reinforced concrete requires clear knowledge of embedded steel location before work begins. The Elcometer 331 TH Concrete Covermeter supports that workflow by locating reinforcement bars, measuring cover depth, assessing bar size, recording survey data, and measuring half-cell potential for corrosion assessment.

• Scans concrete with interchangeable search heads to locate reinforcement bars.
• Uses signal strength, audible tone, and head alignment to confirm bar position.
• Updates cover depth readings continuously during scanning.
• Supports Locate, Maxpip, and Under Cover detection modes.

• Measures rebar location, orientation, cover depth, and bar diameter.
• Supports Metric 5–50 mm, Imperial #2–#18, ASTM/Canadian 10M–55M, and Japanese 6–57 mm bar series.
• Stores linear and grid survey batches with capacity up to 240,000 readings.
• Uses a 7.4 V rechargeable lithium-ion battery with up to 32 hours of continuous operation.
• Outputs survey data through RS232 for PC or printer transfer.

• Rebar locating before drilling, fastening, repair, or inspection work.
• Cover depth and bar sizing checks in reinforced concrete.
• Half-cell survey workflows for corrosion potential assessment.
• Grid-based survey recording for concrete inspection documentation.

• Supports 0–34 cm / 0–16 in borehole probing with the included short probe.
• Detects reinforcement bars up to 45 mm to the side or 60 mm in front.
• Detects 70 mm tendon ducts up to 60 mm to the side or 90 mm in front.
• Uses a 16 mm shaft with 1 cm / 0.5 in markings and a 20 mm optimum hole diameter.