This document provides instructions for operating and troubleshooting a key chain transmitter that can control timers or counters. It has 3 buttons that can start, stop, or reset a timer, or increment, decrement, or reset a counter. To add or delete remotes from the receiver's memory, you press and hold the program button and then press buttons on the remote. The technical specifications include that it operates on 303MHz, has a 150 foot range, and uses a 12V battery. It also provides instructions for changing the output configuration and complies with FCC regulations.