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.
Key Features
Covermeter & Half-Cell Accessories
Standard Search Head
Designed to meet most of your measurement requirements.
Narrow Pitch Search Head
Accurately measures the cover thickness when the gaps (pitch) between each of the rebars are close together.
Deep Cover Search Head
The ideal search head for accurately measuring rebars that are deep within the structure.
Dual Search Head for high tensile and stainless steels
The search head is designed to locate High Tensile and Stainless Steel.
Borehole Probe
The solution for locating tendon ducts and multiple layers of rebar lying deep within the concrete.
Half-Cell Kit
Consists of either a copper electrode in a copper sulphate solution or 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.
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.
Verification Block
The verification block allows the user to check the calibration of their gauge in order to ensure maximum measurement accuracy.
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 | Description | |
| TW33119124-1A | Standard Search Head | |
| 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 | Description | |
| TW33119124-2A | Narrow Pitch Search Head | |
| 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 | Description | |
| TW33119171A | Deep Cover Search Head | |
| Range | 40mm /1.6" bar 35mm to 180mm / 1.4" to 7" 8mm / 0.3" bar 25mm to 160mm / 1" to 6.3" |
|
| Dimensions | 155 x 88 x 42mm / 6.1 x 3.5 x 1.65" | |
| Sensing area | 160 x 80mm / 6.3 x 3.15" | |
| Part Number | Description | |
| TW33120014D | Dual Search Head for high tensile and stainless steels | |
| Range | 40mm /1.6" bar 35mm to 180mm / 1.4" to 7" 8mm / 0.3" bar 25mm to 160mm / 1" to 6.3" |
|
| Dimensions | 155 x 88 x 42mm / 6.1 x 3.5 x 1.65" | |
| Sensing area | 160 x 80mm / 6.3 x 3.15" | |
| Part Number | ||
| Metric | Imperial | Description |
| TW33119223-1A | TW33119223-3A | Borehole Probe (Short) |
| TW33119223-2A | TW33119223-4A | Borehole Probe (Long) |
| Measurement Depth | Short Probe: 0 - 400mm / 0 - 16" Long Probe: 0 - 1000mm / 0 - 40" |
|
| Approximate detection ranges | Tendon duct (70mm / 2.75" diameter): up to 90mm / 3.54" | |
| Part Number | Description | |
| TW331CUKIT | Half-Cell Kit (Copper/Copper Sulphate) | |
| TW331AGKIT | Half-Cell Kit (Silver/Silver Chloride) | |
| TW33119683 | Extension Cable 100m / 325ft | |
| TW33119222 | Extension Arm Kit | |
| TW33119218 | Verification Block | |
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Standard Search Head- Part Number : TW33119124-1A
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Narrow Pitch Search Head- Part Number : TW33119124-2A
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Deep Cover Search Head- Part Number : TW33119171A
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Dual Search Head for high tensile and stainless steels- Part Number : TW33120014D
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Borehole Probe (Short)- Part Number : TW33119223-1A
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Borehole Probe (Short)- Part Number : TW33119223-3A
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Borehole Probe (Long)- Part Number : TW33119223-2A
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Borehole Probe (Long)- Part Number : TW33119223-4A
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Half-Cell Kit (Copper/Copper Sulphate)- Part Number : TW331CUKIT
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Half-Cell Kit (Silver/Silver Chloride)- Part Number : TW331AGKIT
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Extension Cable 100m / 325ft- Part Number : TW33119683
-
Verification Block- Part Number : TW33119218
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Extension Arm Kit- Part Number : TW33119222