12/24 Hour time formats This digital wall clock with indoor temperature and humidity sensor(C/F) , it can monitor the indoor temperature and humidity. And this wall clock could choose 12/24 Hour time format. 3-level brightness The digital alarm clock provides 3-level brightness, adjust by manual or auto to a comfortable brightness. The LED light will automatically dim during 8pm~6am your sleep time to protect your eyes at night and save energy. Battery operated wall clock Digital wall clock runs on two 'D' size batteries. The time accuracy is 30 seconds per month; temperature accuracy is 0.3C; humidity accuracy is 3%.
