Your Speedangle Lap Timer serial number is located on the back of unit or displayed when you switch the timer on.
SpeedAngle Lap Timer comes with a limited twelve months (one year) warranty from your date of purchase. SpeedAngle warrants the SpeedAngle Lap Time device against defects in materials and workmanship under ordinary use for one year from the invoice date. This limited warranty does not cover damage due to external cause, including but not limited to accident, abuse, misuse, improper installation, improper connections with devices or components other than specified, and unauthorized repair or alteration.
SpeedAngle Apex Model - Shown above.
SpeedAngle JI100S Model - Shown above.