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Magnetic Kitchen Timer Clock – Digital Audio and Visual Timer – with Battery – Loud Beep Sound with Volume Control – Multipurpose Digital Timer : Amazon.co.uk: Home & Kitchen
GitHub - gavinlyonsrepo/timer_arduino_two: Countdown Timer: Range 1-99 minutes. Output time (mm:ss) to seven segment display and Audio to Buzzer. Input: Push button to start. Potentiometer used for time select.