... Numeral and color LED display 2.2,3,4,6,8sensors for option description: 1,Numeral and color LED display 2, ... Step-up buzzer alarm 3,Left and right obstacle indication 4 ... 5,Display unit with built-in buzzer 6,2,3,4,6,8sensors for option7,Display size: 132*25 ... 0.58Kg 20 pcs/ctnN.W.: 11.6 kg /ctnG.W.: 12.4 kg /ctnMEAS:53*32.3*42cm ...