Features: weight weighing pads27kg (per each) display9kg size size of weighing pads80016135016122mm size of display430161335161170mm steady wireless transmission distance: no obstruction: 25m with obstruction: 15m recommended driving speed: 3-5km/h grade weighing pads:ip67 display:ip65 environment temperature temperature -30161;171;+80161;230; relative humility¡ê188;90%rh it uses digital wireless transmission to avoid the wires being broken. The technology of super-high Frequency wireless transmission improves the system's anti-inteference capability and protects Dynamic measuring precision. two pads are calibrated separately with revising of 10 points, which improves the precision. it has display of time and date, typing of truck and ticket numbers, monitor instrucion of quantity Of electricity of battery in two pads. use of zero tracking technology eliminates zero drift thoroughly. it's easy to operate with digitized menu. it has micro-printer, which can print time, date, truck number, ticket number, axle weight, total Weight, overload weight and monitor enterprises as the law enforcing proof. use of standard rs-232 connector is easy to be connected with computer. provided with ac charger and vehicle-mounted charger with high power capacity of storage battery. Cartons