The Telescript Tally One is a professional numeric display designed for broadcast environments, television studios, mobile control rooms, and conference rooms where immediate visualization of the camera’s “on-air” status is essential. The device displays a single digit from 1 to 9, which remains green in standby mode and turns red when the camera is active. The tally includes an optical photo sensor that connects to the camera’s tally light, ensuring a simple interface and quick setup. Compatibility with the Telescript system also allows connection to the Clock One time code display for complete counter/time code integration. With its robust construction and simple design, Tally One is ideal for fixed or mobile installations, with a large, visible numeric indicator for talent and operator, improving studio coordination and optimizing live production workflows.