20/07/2026
Narika Optical d-Timer Non-Contact for Ticker Tape:
The Narika Optical d-Timer (C15-1708 Recording Timer d) is a distance-measuring device designed for science experiments in school education — a modern, non-contact replacement for the traditional ticker tape timer. Instead of striking carbon dots onto paper, it shines light onto the recording tape inserted into its guide and uses an optical image sensor to continuously capture and analyse images of the tape's surface, determining travel distance and direction and outputting the data digitally via USB.
Attach the recording tape to a dynamics cart and move it: the device measures the tape's displacement over time, and the high-speed optical sensor lets results appear in real time as graphs in the dedicated web application — distance, speed and acceleration — making motion analysis dramatically more efficient. No dot counting, no carbon discs, no wasted lesson time.
Key Features
• Non-contact measurement — Optical image sensing reads the tape surface directly — no dots, no carbon discs, no striker mechanism.
• Real-time graphing — Distance–time graphs draw live in the dedicated web application; enable speed and acceleration graphs as needed.
• Fine resolution — 0.001 m minimum display unit at 0.02 s measurement intervals, over 0–50 m depending on tape length.
• Simple USB connection — One USB 2.0 cable (1 m, retractable into the body) provides power and data. Works with Windows 10/11 and ChromeOS.
• Flexible control — Start/stop from the button on the device (recommended) or from the web application.
• Measures direction too — Direction-aware sensing: motion opposite the arrow reads as negative, so reciprocal motion can be measured.
• Compare & export — Save Box stores the last five runs for comparison; export and reopen data as CSV files.
• Classroom-ready — Compact (85 × 60 × 40 mm, approx. 100 g) with a camera mount screw hole; 1 roll of recording tape included.
