• Front Dimension 144x144mm, 96x96mm, 72x72mm.
• DIN43700, DIN43802, DIN43718, IEC1010, IEC473, IEC51, BS89 
• Polycarbonate, self extinguishing and drip-proof per UL94V-0 
• Rugged housing-non combustible, plastic-heat resistance. 
• Accuracy± 1.0 % Or customize.
• Vibration reed movements
• Direct connection 50V, 100V, 220V, 380V, 415V, 440V or request.
• Frequency range 45-55Hz, 47-53Hz, 55-65Hz, 57-63Hz, 54-66Hz, 
  450-550Hz., 450-  650Hz., 550-650Hz. 
• More detail see ordering information.