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²£«~®i¥Ü > Equipment & Instrumentation > Instruments ORP Pocket Tester “HANNA” #HI98120 ORP值儀   ORP Range +/-1000 mV, Range 23 To 140 F, -5 To 60 C, Ambient Humidity Range 100 % §ó¦h¸Ô±¡ “HANNA” ORP Pocket Tester # HI98120 ORP值儀        ©ö¶T³qµ¦¹º¤Î³]­p ª©Åv©Ò¦³ ¤£±oÂà¸ü