Conforms to ASTM G62-A, NACE RP0274-98, ASTM G-6, AS3894.2 & AS1580.485.1 These units are also known as wet sponge testers, low voltage holiday detectors, low voltage porosity detectors or pin hole detectors. 
Features
LED display of voltage Internally mounted 9 Volt battery Low battery condition LED indicator Audible and visual fault alarms Telescopic handle for user confort (extends to 4/1.2 m) Large probe head (9" x 1.57"/230 x 40mm) and wider sponge gives faster tests. Smaller probe heads available. Earphone jack to allow testing in noisy environments (earphone not supplied) The PCWI wet sponge tester comes with selectable 9, 67.5 or 90V test voltage
Applications
Use the wet sponge method to detect pinholes in thin coatings
Complete Kit
The Wet Sponge Pinhole Tester Kit
The Thin Film (Wet Sponge) Pinhole Kit comprises the detector, telescopic probe handle with sponge, 23-feet (7m) Earth lead and clamp, carrying case, operating instructions with Conformance Certificate.
Specifications
| Model | 0789 | | Test Voltage | Selectable 9, 67.5 or 90V | | Range | 0 - 20 mils (500μm) | | Operating Temperature | 32 to + 122oF (0 to +50oC) | | Telescopic Probe Length | 14" to 47" (350 to 1200 mm) | | Power Supply | 9V battery | | Dimensions | 8.25" x 3" x 1.25" (210 x 75 x 35 mm) | | Alarm | Audible and visual | | Battery Condition | Low battery LED indicator
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