I've used a set of motorsport corner weight gauges for weighing pallets, four pads, connected to a central read out/print unit. Low profile pads, a fraction of the price of industry sourced units.
Quick interweb search:
Professional Model Scales | Computer Scales & Accessories | Demon Tweeks Motorsport, Motorcycle, Car Modifying, Parts and Accessories,Sparco, Arai.
Cheers,