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Automatic enlarger timer "Switch and exposure meter for B/W and color negatives and slides. Selective or integral exposure measurement using an independent metering head with a silicon optical sensor and converging lens. Three digits, display amber digital. Start button preparation screen. Time step in the time cycle with countdown to zero.
A press of the second button then resets the stopwatch to zero. The second button is also used to record split times or lap times. When the split time button is pressed while the watch is running it allows the elapsed time to that point to be read, but the watch mechanism continues running to record total elapsed time. Pressing the split button ...
A time switch (also called a timer switch, or simply timer) is a device that operates an electric switch controlled by a timer. Intermatic introduced its first time switch in 1945, which was used for "electric signs, store window lighting, apartment hall lights, stokers, and oil and gas burners." A consumer version was added in 1952.
A typical kitchen timer. A timer or countdown timer is a type of clock that starts from a specified time duration and stops upon reaching 00:00. An example of a simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software.
A binary clock is a clock that displays the time of day in a binary format. Originally, such clocks showed each decimal digit of sexagesimal time as a binary value, but presently binary clocks also exist which display hours, minutes, and seconds as binary numbers. Most binary clocks are digital, although analog varieties exist. True binary ...
A manual self-timer, 2011. A manual self-timer mounted on a film camera, 2011. A self-timer drive mode button on a Canon digital camera, 2008. Robert Faries: Shutter tripper for Camera's, US Patent 690,939, January 14, 1902. A self-timer is a device on a camera that gives a delay between pressing the shutter release and the shutter's firing. It ...
We especially love that this toothbrush has a two-minute timer that reminds you to move onto a different quadrant of the mouth every 30 seconds. To charge, simply juice up the long-lasting lithium ...
Watchdog timers may have either fixed or programmable time intervals. Some watchdog timers allow the time interval to be programmed by selecting from among a few selectable, discrete values. In others, the interval can be programmed to arbitrary values. Typically, watchdog time intervals range from ten milliseconds to a minute or more.