The Skipper 5 (SMM5) from Tramex is the moisture meter for marine surveys: it measures moisture non-destructively in hulls and decks, in both glass-reinforced plastic (GRP) and wood, with three selectable scales and two investigation depths.
- Non-destructive measurement: on glass-reinforced plastic (GRP) and wood
- Three scales: hardwood %MC, shallow depth, GRP 0–100
- Dual depth: up to 30 mm or 10 mm
- Range on wood: 5–30% moisture content (%MC)
- Bluetooth + App: Tramex Meters for iOS and Android
- HOLD/Audio function: reading hold and audible alert
- Marine surveys: diagnosis of osmosis and trapped moisture
The Skipper 5 works on the principle of the change in the electrical impedance of the material as its moisture content varies: three coplanar conductive rubber electrodes, pressed against the surface, generate a low-frequency alternating electric field that penetrates the material to about 30 mm (normal depth) or 10 mm (shallow depth), depending on the scale and the density of the material.
The dual depth makes it possible to compare surface moisture with deep moisture and to distinguish true moisture from readings caused by conductive materials. The instrument is ideal for diagnosing osmosis in GRP boats and rot in wooden boats, and for monitoring drying before repairs.
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Technical characteristics
| Feature | Value |
| Instrument type | Non-destructive moisture meter for marine surveys (GRP and wood) |
| Measuring principle | Change in electrical impedance; alternating electric field between 3 coplanar rubber electrodes |
| Selectable scales | 3 – Hardwood (%MC), Shallow depth, Glass-reinforced plastic G.R.P. (0–100) |
| Measuring range on wood | 5–30% moisture content (%MC) |
| GRP comparative scale | 0–100 |
| Penetration depth | Up to ~30 mm (normal depth) / up to 10 mm (shallow depth) |
| Wood calibration | Hardwood with specific gravity S.G. 0.60 |
| Display | Analogue moving-coil instrument (dual scale: wood and comparative) |
| Controls | 4 keys: ON/OFF, SCALE, HOLD/AUDIO, Bluetooth |
| Connectivity | Bluetooth + Tramex Meters App (iOS and Android) |
| Audible signal | Yes (alert on high values) |
| Automatic switch-off | After 5 minutes of inactivity |
| Warranty | 1 year |
Part numbers, accessories and spare parts
Order codes for the SMM5 moisture meter and the accessory pack. The article codes are available in the price list.
Instrument – complete kit
| Part number | Product code | Description |
| — | SMM5 | Skipper 5 moisture meter for marine surveys – basic instrument (3 scales, Bluetooth) |
Accessories
Photo
Part number
Product code
Description
—
AP-SMM5
Accessory Pack: E5 extension electrode, HBS extension handle, CalBoxM verification calibrator, holster
Technical documentation
| Document | Type |
| Skipper 5 SMM5 user guide (Italian) | User manual (PDF) |
Frequently asked questions
It measures moisture non-destructively in the glass-reinforced plastic (GRP) and the wood of hulls, decks and boat components, both inside and outside.
The electric field penetrates to about 30 mm at normal depth (Hardwood and GRP scales) and up to 10 mm on the shallow-depth scale, depending on the density of the material.
On wood the instrument indicates a moisture content from 5% to 30% (%MC), with the calibration referred to wood of specific gravity S.G. 0.60.
Yes. Via Bluetooth it connects to the Tramex Meters App (iOS and Android), which allows readings to be displayed, photographed and geo-tagged as documentary support for the survey.
Contacts & Information
Contact for general information : info@roder.it
Machine Vision Division of RODER : www.rodervision.com
RODER Instruments Division : www.innovacheck.com
More about RODER : about us
The information contained in this website is provided for information purposes only. Although it has been prepared with the greatest care, it does not constitute a contractual offer or a binding commitment to supply. It may contain transcription, translation or typographical errors. For precise and up-to-date information, please contact our company directly.
Note: Some images on this website have been intentionally generated using artificial intelligence (AI). This is because, for many applications and projects, photographs of the actual installation or system cannot be disclosed owing to confidentiality agreements, contractual clauses and non-disclosure agreements (NDAs).
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