Unique 49++ Intermatic Timer Lowes. An intermatic timer is a timer that you can install in your home and connect to anything with a power source, such as lights, to program them to turn on and off at certain times of day. Here are some user guide tips and some troubleshooting for the most common problems you will have. Bought one at lowes, it didn't work. The most common pool timer used for inground pool pumps is the intermatic time clock.