specification: Class : C3 Rated Load: 250KG,500KG,1T,2T,3T,5T,10T. Rated Output: 2.0000+/-0.001mv/v Total Error: +/-0.02% Recommended Excitation Voltage: 5v-12v(AC or DC) Maximum Excitation Voltage: 15V(AC or DC) Zero Balance: +/-1% F.S Safe Overload:150% F.S Ultimate Overload: 200% F.S Cable Length: 3m(0.5t-5t), 7m(5t), 10m(10t), 13m(20t-25t) Construction: Alloy Steel Protection Class: IP68 & IP67 Citation: GB/T7551-1997/OIML R60 Mode of Connection: Input+: Red Input-: Black Output+: Green Output-: White Carton size:410*220*230mm=0.021cbm Below 3t, 8pcs/carton 12.2kg 5t, 4pcs/carton 10.3kg 10t,4pcs/carton 22kg