div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader043vdocumentsmxreader043viewer20220403105f36c2b69406f716123eac25html5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: HALO BT pH Manual - Hanna InstrumentsshophannasingaporecommediapdfHALO-BT-pH-Manualpdf · the probe The blue LED halo will begin to flash in half second intervals indicating src=https:reader043vdocumentsmxreader043viewer20220403105f36c2b69406f716123eac25html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader043vdocumentsmxreader043viewer20220403105f36c2b69406f716123eac25html5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: HALO BT pH Manual - Hanna InstrumentsshophannasingaporecommediapdfHALO-BT-pH-Manualpdf · the probe The blue LED halo will begin to flash in half second intervals indicating src=https:reader043vdocumentsmxreader043viewer20220403105f36c2b69406f716123eac25html5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdiv