The circuit was designed to create a low cost frequency meter that will cover the range of 1 Hz to 1 MHz with a digital indication using three 7-segment displays. 7805 – a 3-terminal 1A positive ...

Power plants use indicators to monitor process parameters such as pressure, flow, temperature, voltage, current, and vibration. Unless a facility is relatively new, it likely has analog panel meters; ...

Digital modulation has a lot to answer for. Although the spectral efficiency of communications systems has improved, many signals resulting from digital modulation have significant power variation. In ...

A popular purchase from the usual stockists of imported electronic modules is a digital panel meter. A very small amount of money secures a module with a seven-segment display that you can stick on ...

Paired with the Digital Flowmeter compressed-air meter, the Summing Remote Display allegedly makes it easy to monitor air consumption from a convenient location. Paired with the Digital Flowmeter ...

Claimed as the world’s first multi-function light meter with exposure profiling and wireless triggering, the Sekonic Digital Master L-758DR has been designed for professional photographers who shoot ...

Editor's note: If you're like us and can't bear to part with that crusty old (but magnificent) analog meter, David Ashton offers everything you want to know about these gems in this three-part series: ...