• 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 
• Double Reed Vibration Type   
• Double Indicating with Pointer Type<
• Direct connection 100, 220, 380, 440V,or request.
• PT connection 66, 100, 110, 115, 120V or request.
• Frequency range 47-53Hz., 57-63Hz., 45-55Hz., 45-65Hz., 
  55-65Hz., 44-56Hz., 54-66Hz., 450-550Hz., 550-650Hz. 
• More detail see ordering information.