The first brand of Taiwan SCR ZEROSPAN, 1986 beginning the specialty is engaged in the SCR electric adjuster/power regulator/electric heating controller;

PK010 and PK001 as SCR affiliated fittings, manual adjusting device for electric equipment, can according to need to adjust the size of SCR output

PK001 = VR103 +  knob dial (pure manual or basic quantity or maximum output adjustment with)

PK010 = VR-01 +  knob dial (two line connection, maximum output adjustment with) DC4 - turn 20 ma DC1-5 v