Ct-ddt200 series digital clocks (ntp/irig-b/serial) Ct-ddt200 series digital clock receives time signal from a master clock, supports ntp?irig-b and serial input, provides highly visible time displaying in public places like hospital, school, train station, airport and bank etc. Key features Multiple time signal inputs: ntp / irig-b / serial Time synchronization accuracy = 10ms High internal holdover accuracy when loss of time signal High-brightness digital tube with bright and uniform color Adjustable of light brightness, to satisfy different situation demands Support ceiling suspending, wall hanging and embedded installation Support yy:mm:dd, hh:mm:ss, week / temperature / humidity display Display content, single or double screen, light color, size are all customizable