Frequency sensor/transmitter/transducer input:75-450V;35-80HZ output:0- ... meters (PLC), kinds fo A/D converter,computer system.product frequency transmitterGrade0.5&1.0modelA5F-X-O-Y-S 0.5single ... -5V,0-5KHZpower supplyDC24V,DC15V,DC12V,DC±15V,DC±12V frequency transmitter