This GKP-S8M wireless LED keypad, with sounder and TAG reader, is designed with the user in mind. Its large keys offer simple code entering with push button sound. A unique feature of the GKP-S8M is the keypad lighting – this makes entering the PIN code easy, even in the darkest corners. Up to 10 users. Built-in siren 92dBA (3m). Lighted keys. Four LEDs for status. Two CR123 batteries. 175.5 x 112.5 x 25 mm.