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Tinker & Rasor’s M/1 Retro Low Voltage Holiday Detector is the classic wet-sponge detector for pinholes or bare spots in thin film coatings under 20 mils thick. Equipped with a 9 volt battery, the Tinker & Rasor M-1 features on-board calibration verification, LED light on the front of the detector indicates unit calibration and detection of coating flaws, and a waterproof plastic housing protects electrical components from exposure to the elements.
Tinker & Rasor M/1 is supplied with a sponge electrode, with custom electrodes available in various lengths, as well as internal round sponges for flaw detection of internal pipe linings.
Features of the Tinker & Rasor M-1 Retro Wet Sponge Porosity Detector includes:
- Regulated 67.5v output
- Push-button calibration check
- 2 resistance settings:
- 80Ω for tanks and pipe (factory setting)
- 90Ω for coatings on concrete
- Conforms to NACE RP0188, Standard Recommended Practice: Discontinuity (Holiday) Testing of New Protective Coatings on Conductive Substrates
