A. Battery Cells Access (C x 8)
B. Power Switch – Flashes when batteries need to be replaced
C. USB connects to your PC
D. GPS Antenna
E. Indicates that the AGM2 is searching for a GPS signal
F. Indicates that the AGM2 found a GPS signal
G. Indicates that the magnetic field has changed
H. Indicates that a PIG has passed by, OK to turn off AGM2