unit packaging size for 1pc of CZ3047 signal isolator: outer carton for 6 pcs of CZ3047 signal isolator: 17*15*13 cm outer carton for 12 pcs of CZ3047 signal isolator: 30*18*15 cm outer carton for 30 pcs of CZ3047 signal isolator: 35*29*14 cm outer carton for 60 pcs of CZ3047 signal isolator: 35*29*26 cm CZ3047 4-20ma signal conditioner signal conditioner signal isolator 1 input 1 output CHENZHU