The Reichert PDM Digital PD Meter utilizes the latest technology for measuring interpupillary distance and right/left pupil-to-nose distance. The PDM's ergonomic design, smooth action, and ...

Tape measures are DIY necessity, but for measuring long distances a digital laser measuring device can't be beat. You can instantly measure lengths of up to 800 feet by yourself, and these tools can ...

A pupil distance meter is a device used to measure the distance between a person’s pupils before they are fitted with glasses, in order to ensure the lenses are centred in the visual axis. It may also ...