1.5 inch 4 digit bus digital clock with temperature and date display, battery backup, low power, stable and liable pcb design 1 ... .5 inch 4 digit bus digital clock with temperature and date display Master Features: 1. Dimensions: 160 × 50mm; 2 ... : Temperature -10 ~ 70 , humidity from 0 to 90% 7.4 digital display, 1.5-inch high characters for the red LED ...