Telemetry? or ant suggestions?
 

Hi guys i need help of choosing which equipment to get ,here is my situation: I have a losi type r that i'm setting up for racing i need an equipment that i can use for lap counting with timer so i will know if my set up adjustment is good or bad also that can monitor speed, motor rpm. thanks for any help

I have a speckrum setup if you are interested.... BNIB

so anyone tried using the telemetry? is it worth the buy seems like it is only thing available for my specific need