HALO BT pH Manual - Hanna Instrumentsshop.hannasingapore.com/media/pdf/HALO-BT-pH-Manual.pdf · the...
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HALO BT pH Manual - Hanna Instrumentsshop.hannasingapore.com/media/pdf/HALO-BT-pH-Manual.pdf · the probe. The blue LED halo will begin to flash in half second intervals, indicating