Analogue Outdoor Clock - Metro The Metro outdoor clock has been used by various Swiss railway companies for decades. Thanks to its robust construction and a large number of different movements, it has proven itself to this day. Technical Features Diameter & optimal reading distance:ø 40cm = 45-50mø 50cm = 55-60mø 60cm = 65-70mø 80cm = 85-90mø 100cm = 105-120mTime Distribution:Polarized ImpulsesMOBALineNTPSerialIRIG / AFNORDCF 77, DCF activeGPS (DCF current loop)QuartzWTD wireless time distributionHousing materials:standard metallic housing (Aluminum, RAL 9006)Special housing colors on requestCover glass:mineral glass covertempered glass coverpolycarbonate glass coverDegree of protection:IP 54Power Supply:MOBALinePoEMains supplyExtra Low VoltageBattery Dial Options Important notice: Dial 100 (with signalling disc on second hand) is not available in Switzerland.