The XGuard Self-Calibrating Back Plate RPM Sensor with Static discharge protection and sensor power buffering is the most advanced Back Plate RPM Sensor to date.
This sensor instead of having a fixed trigger point that might work or not with your particular engine, it works by sensing the magnetic field variation of the first pulses and calibrates itself to the ideal magnetic field trigger point for that particular engine.
It measures the max and min magnetic field via an amplified hall-effect sensor and calculates the ideal trigger point for that particular range your engine presents to the sensor. This effectively self-calibrates the sensor to work optimally in your engine.
Because of this feature it even works on YS engines with their steel plates. Watch the video and you’ll see it working on a YS210 back plate. Not only that but it also works with side-installed configurations and senses the crankshaft counterweight passing but the side of the crankcase. Check the video to watch that in action.
There are two versions, the regular one for use in most FBL units (AAVXG0262) and also the Futaba version (AAVXG0263) with their different pulse shape and limited to the 3 volts used by Futaba’s FBL units as per their specifications.
Sensor kit Includes:
1 Sensor PCB with SMD components and servo-type extension.
1 Mounting plate for 91-105-120 class engines
1 Mounting plate for 50-55 class engines
3 M3 nuts
3 M3 x 8mm button head screws
1 90 degree mounting block