This narrow style waterproof keypad from Alpro is simple to install and user friendly. The aesthetically designed and vandal resistant unit is suitable for up to 200 users. Slim and secure with no moving parts they are manufactured to a high standard and suitable for external or internal use. Features solid state piezo technology with no moving keys, slimline design, visual and audio feedback, aswell as timeout functions for code entry. Non-volatile memory CE and UL approved. Long life wear resistant unit. Comes with 3 metre long connection cable fitted and full installation instructions.