Introducing the Electronic Door Sign from industry leader troniTAG. Update any or all of your door signs quickly and easily from one central computer. Features a 4.7” x 3.5” screen and easy-to-read e-paper technology. Available display colors are black and white or black, white and red. Battery life is over 5 years. The Electronic Door Sign is perfect for posting and updating schedules, identifying rooms and guiding visitors. For more information, visit us at the VKF Renzel USA Corp booth, number 2106.