I purchased a Taylor kitchen timer at Target for $5 (http://www.target.com/p/taylor-digital-timer/-/A-11010437#prodSlot=medium_1_1&term=taylor+timer). This timer will count up from zero or count down like any other ordinary timer. I have used it in both modes. The timer has a small magnet in the back that I popped out with a small flat head screw driver. The only reason for removing the magnet is because it may come into close proximity with the compass on the Phantom. With a little bit of Velcro I attached it to the transmitter and...
At first I taped the timer to the transmitter in two locations to see which I liked the best... Alternatively you can place it here:
At first I taped the timer to the transmitter in two locations to see which I liked the best... Alternatively you can place it here: