Witt Gauss meter permanent magnet material magnetic force measuring instrument | eBay
Witt WT10A/10B/10C/10D/10E/10F Gaussmeter/Teslameter/Magnetic magnet _ - AliExpress Mobile
WITT: Steel cylinder found while magnet fishing in the Mississippi river. Measures 39 inches around the base, 24 inches around the middle shaft part and 11 inches tall. Has green-blue glass on
Witt Gauss meter permanent magnet material magnetic force measuring instrument | eBay
Amazon.com: WITT 8" Rectangle Blue Colored Weathered Painted Look Magnet for use on Any Steel Surface : Home & Kitchen