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NOHMI BOSAI FDK512 OPTICAL SMOKE DETECTOR NOHMI BOSAI FDK512 NOHMI BOSAI LTD. MODEL FDK512 OPTICAL SMOKE DETECTOR FOR MARINE USE (20V DC, 80MA) NK TYPE APPROVAL NO. N-624 SENSITIVITY NORMAL LOW TEST VOLTAGE(V) 0.40 0.47 G= HK WEIGHT : 110 GM REF NO(S) : 20483
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