Futaba RPM magnetic sensor SBS-01RM

SBS-01RM : the Futaba RPM magnetic sensor.
This sensor, used in conjunction with a telemetry enabled transmitter/receiver, is used to indicate the rev (engine, a motor, etc. ) of the item to which it is attached. The number of rotations of a model in the sky is a system which can be checked with a transmitter etc.

Specifications:

Use : RPM Sensor
Length：255mm
Weight：4.7g
Voltage : DC3.7 ～ 7.4V
Range : 360 ～ 100,000 RPM

In the box:

SBS-01RM S-Bus2 adapter x1
Futaba's governor sensor x1
Magnets x2
Screws, nuts, spring washers, washers