... power: 220V/50Hz 3.Direct digital display. Intelligentized Digital viscometer 155 Intelligent Digital Rotary ViscometerThis standard model of the BGD series ... power: 220V/50Hz6. Ordering Information:BGD 155/1--- Viscometer: 10-600,000mPa.s(cP)BGD 155/2--- Viscometer:10-6,000,000mPa ... .s(cP)BGD 155/3--- Viscometer: 10-80,000 ...