Model 25 serialized and certified pocket magnetometer, /- 100 gauss - Hocker Incorporated
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Digital Gaussmeter EMF Elf Magnetic Field Gauss Meter 30 300hz Made in Taiwan for sale online | eBay
Amazon.com: ELEOPTION Tesla Meter Gauss Meter with Probe WT10A The Fluxmeter Surface Magnetic Field Tester Gaussmeter with NS Function Metal Probe : Industrial & Scientific