Cardinal’s American-made Guardian Hydraulic Truck Scales are ideal for the solid waste, aggregate, chemical, grain, and construction industries because they offer a high level of protection against many of the conditions that can adversely affect truck scale installations. Water, lightning, power surges, explosive areas, corrosion, welding, shock loading, extreme temperature fluctuations and even rodents can cause scale problems, all at a cost to the owner. Cardinal builds their scales rock solid steel deck plate to stand up to heavy loads. Every Guardian is 100% factory assembled and tested before shipping. NTEP legal-for-trade.