A few years ago, I had built myself a 5 minute timer to help me with my Ingress efforts, I never got around to turning this project into an Android customization piece, but since it works great for ...

The EC113 is a digital timer with an on-board potentiometer and custom timer range. It has a timer accuracy of 1 min/hr which operates at -40 ºC to 85 ºC. The module has an input voltage of 120 or 208 ...