Covermeter & Half-Cell Accessories
- Protective Coatings
Range of accessories for the Elcometer 331 BH, SH, TH and THD models.
Covermeter & Half-Cell Accessories
- Protective Coatings
Range of accessories for the Elcometer 331 BH, SH, TH and THD models.
Summary

Covermeter & Half-Cell Accessories
For the Elcometer 331 BH, SH, TH and THD models, all search heads, the borehole probe and half-cell probes are fully interchangeable there is no requirement to return your gauge to Elcometer.
Elcometer 331 SH, TH and THD models are also supplied with CoverMaster™ & EDTS Excel link transfer software and PC Cable.
The Elcometer 331 Model B does not have half-cell capability and cannot be used with the half-cell probes listed below.
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Standard Search Head
Designed to meet most of your measurement requirements.
Range: 40mm / 1.6" bar 15mm to 95mm / 0.6" to 3.75"
8mm / 0.3" bar 8mm to 70mm / 0.3" to 2.75"Dimensions: 155 x 88 x 42mm / 6.1 x 3.5 x 1.65"
Sensing area: 120 x 60mm / 4.72 x 2.36"
- Part Number : TW33119124-1A
- Certification : No Certificate
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Narrow Pitch Search Head
Accurately measures the cover thickness when the gaps (pitch) between each of the rebars are close together.
Range: 40mm / 1.6" bar 8mm to 80mm / 0.3" to 3.1"
8mm / 0.3" bar 5mm to 60mm / 0.2" to 2.4"Dimensions: 155 x 88 x 42mm / 6.1 x 3.5 x 1.65"
Sensing area: 120 x 60mm / 4.72 x 2.36"
- Part Number : TW33119124-2A
- Certification : No Certificate
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Deep Cover Search Head
The ideal search head for accurately measuring rebars that are deep within the structure.
Range: 40mm / 1.6" bar 35mm to 180mm / 1.4" to 7"
8mm / 0.3" bar 25mm to 160mm / 1" to 6.3"Dimensions: 170 x 94 x 54mm / 6.7 x 3.7 x 2.1"
Sensing area: 160 x 80mm / 6.3 x 3.15"
- Part Number : TW33119171A
- Certification : No Certificate
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Dual Search Head for high tensile and stainless steels
The search head is designed to locate High Tensile and Stainless Steel.
Range: 40mm / 1.6" bar 35mm to 180mm / 1.4" to 7"
8mm / 0.3" bar 25mm to 160mm / 1" to 6.3"Dimensions: 170 x 94 x 54mm / 6.7 x 3.7 x 2.1"
Sensing area: 160 x 80mm / 6.3 x 3.15"
- Part Number : TW33120014D
- Certification : No Certificate
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Borehole Probe (Short/Metric)
The solution for locating tendon ducts and multiple layers of rebar lying deep within the concrete.
Units: Metric
Length: Short
Measurement Depth: 0 - 400mm / 0 - 16"
Approximate Detection Ranges: Tendon duct (70mm / 2.75" diameter) up to 90mm / 3.54"
- Part Number : TW33119223-1A
- Certification : No Certificate
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Borehole Probe (Long/Imperial)
The solution for locating tendon ducts and multiple layers of rebar lying deep within the concrete.
Units: Imperial
Length: Short
Measurement Depth: 0 - 16"
Approximate Detection Ranges: Tendon duct (2.75" diameter) up to 3.54mm
- Part Number : TW33119223-3A
- Certification : No Certificate
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Borehole Probe (Long/Metric)
The solution for locating tendon ducts and multiple layers of rebar lying deep within the concrete.
Units: Metric
Length: Long
Measurement Depth: 0 - 1000mm
Approximate Detection Ranges: Tendon duct (70mm diameter) up to 90mm
- Part Number : TW33119223-2A
- Certification : No Certificate
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Borehole Probe (Long/Imperial)
The solution for locating tendon ducts and multiple layers of rebar lying deep within the concrete.
Units: Imperial
Length: Long
Measurement Depth: 0 - 40"
Approximate Detection Ranges: Tendon duct (2.75" diameter) up to 3.54"
- Part Number : TW33119223-4A
- Certification : No Certificate
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Half-Cell Kit (Copper/Copper Sulphate)
Consists of a copper electrode in a copper sulphate solution, each half cell is a sealed unit - no need to mix chemicals. Supplied with a 25m / 80' cable, every half-cell probe is guaranteed for 5 years.
- Part Number : TW331CUKIT
- Certification : No Certificate
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Half-Cell Kit (Silver/Silver Chloride)
Consists of a silver electrode in a sodium chloride solution, each half cell is a sealed unit - no need to mix chemicals. Supplied with a 25m / 80' cable, every half-cell probe is guaranteed for 5 years.
- Part Number : TW331AGKIT
- Certification : No Certificate
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Extension Cable 100m / 325ft
The extension cable for use with the half-cell kits gives the flexibility to take readings in difficult to reach areas.
- Part Number : TW33119683
- Certification : No Certificate
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Verification Block
The verification block allows the user to check the calibration of their gauge in order to ensure maximum measurement accuracy.
- Part Number : TW33119218
- Certification : No Certificate
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Extension Arm Kit
This kit allows the user to scan bridge decks and floor areas using the hand-held search heads from a standing position as both the standard or narrow pitch search head can be attached to the extension arm.
- Part Number : TW33119222
- Certification : No Certificate