Stelzner Set of test sticks To measure nitrate concentration, pH and water hardness. 3 packs each with 6 test sticks.
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Janitza UMG 96S Modbus Four-wire Universal Measuring Device UMG 96 S I, U, kW, kVA, kvar, Wh, varh, F and power factor
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Gossen Metrawatt MINITEST 3P MASTER VDE Tester DIN VDE 0701-1: 2000 and DIN VDE 0702:
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