Model DC 330 Input 3 - 30V DC from Proximity Sensor, Photoelectric Non Contact Sensor, Encoder, Potential Free Contacts, Limit Switch etc., Input Input Speed 3.5 kHz (Max.) Range 0 - 999999 counts Resolution 1 count /pulse Sensor Supply 12V DC (±10%) 50mA Display 6 Digit 0.5” / 0.3” seven Segment Red Led Working temperature 0 - 50 ºC Power Supply 90 to 270V AC / DC 50Hz Dimension 36 x 72 x 65 mm Weight 200 grams (Approx.)