AVR for generator 1)Quality guaranteed,Competitive price 2)CE and ISO9001:2000 3)SX460,SX440,MX321,MX341,R448,R449,YH-8A AVR for generatorYH-8A ... suppressionInternal electromagnetic inerference filteringThermal drift0.03% per degree change in AVR ambientUnder frequency protection60Hz system presets knee point at 55HzFactory settings50Hz AVR for Generator