This speed sensor allows the Zilla to perform advance features such as stall detect, over speed protection, and limiting of reversing speed
(for units with reversing contactors).
It is made to fit modern Advanced DC motor, and is the
same unit that comes with the 8" Sparrow motors. The sensor produces four
(active low) pulses per revolution which is what the Zilla requires. The speed sensor package includes the magnet, sensor and mounting
screws. The bolt that secures the magnet ring to the motor shaft is a 1/4-20 UNC bolt.
The kit bolts right up to modern Advanced DC motors, and with modifications
it could fit any motor with an exposed tail shaft.
Cafe Electric has provided a number of detailed pictures which will be helpful for custom
installations. These images are found here.
This kit is listed as an "EV Source Exclusive", as it contains the custom male electrical connector and mounting bracket.