Milesight AM103 is a compact indoor ambience monitoring sensor that supports long-lasting battery life, wall-mounted installation, and visual display via an E-ink screen. Meanwhile, AM103L is a more economical model without E-ink screen to meet your various needs. Their built-in NFC lead to easy batch installation. The clean and modern design of AM103 and AM103L is ideal for offices, classrooms, libraries, hospitals, etc.