Digitales Trübungsmessgerät Labortrübungsmessgerät Wasserqualität Tester Instrument 0-20NTU
253,74 €
Zero drift. No.5 Battery x4 Pcs / 6V power adapter. In order to avoid affecting the light pass rate, do not touch the optical components in the machine straightly. When maintenance, use absorbent cotton dip in with the mixture of alcohol and aether to clean the surface.
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