Hello everyone! Today I’m going to discuss a cheap type of useful digital rotation per minute counter (Digital RPM Counter). The 4-Digit LED Display RPM comes with a magnetic proximity sensor switch.

TAMPA, Fla. — U.S. Central Command is planning a set of exercises aimed at filling key gaps in its ability to detect and track drone threats in the Middle East. Amid a sharp increase in one-way drone ...

After a couple of false starts, the city's first digital bike counter is set to go operational Thursday in Fremont with the goal of getting an even more accurate count of daily and yearly trips on the ...