AiM MyChron4 User manual - Manual (Page 6)

MyChron4
User Manual
Release 1.03
www.aim-sportline.com – www.mychron4.com 6
2.1 – MyChron4 external power cable
MyChron4 can also be powered from an external power source but in this case it
needs the proper power cable, shown below.
External power cable has a double function: it powers MyChron4 using the engine
battery or the power produced by the master switch and detects RPM value through
this same cable when it is connected to the master switch, avoiding the installation of
RPM cable. External power cable is expected for some 4 stroke engines (Honda,
Briggs & Stratton).
Note: MyChron4 has an auto-power off function after eights minutes of inactivity that
switches the logger off also if externally powered.