Product Name:Led digital displaySpecification:Outline dimension:650mm(L)*291mm(H)*91mm(D)Display usage:total 4 digital 8" red 7 segment led displayFrame:aluminum alloyFaceplate: display window cover brown glassCover board:black PVCHeat elimination:cover board has heat elimination holes.Function:4 digital display,can display from 0 to 9999Technical norms:Operational environment:temperature -10°C~50°C,relative humidity 0~95%RHOperational power source:Optional Power source:AC110V~250V,according client use voltage standardPower consumption: ≤15WRemark:we also can use different 7-seg led display to make can show digital,date,timeand temperature,humidity and so on,according to your need choice.Packing:dampproof paper,foam board.carton producing area:china