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• Elastic at waist
Built-in magnetic declination screw and magnifying lens
A battery or power supply should therefore be capable of providing at least 8–10 amps continuously to allow for startup and reliable operation
no counting of drops or calculations
McCullough Geotechnical Gauge Tags • Elastic at waistProduct Code: 77325 The McCullough Geotechnical Gauge is a compact, waterproof field reference designed to help geologists, geotechnical engineers, environmental scientists, archaeologists, and soil technicians make accurate and consistent soil classifications in the field. Printed on a durable, flexible plastic card, it combines numerous essential soil identification references into a single easy to carry tool, allowing rapid field assessments