Spektrum Firma 150A Smart ESC for surface vehicles is waterproof and delivers power and intelligence all-in-one. Without additional sensors or modules, they feed battery and ESC telemetry data straight to your radio in real time, all over one connection. Spektrum Firma 150A Brushless Smart ESC, 3S-6S, SPMXSE1150. Fast, powerful 32-bit ARM M4 processor. Multiple options […]