Prevent erratic engine frequency and safeguard your backup power with quality generator speed sensors from The Generator King.
These sensors constantly tracking flywheel rotation and signal your control panel to adjust fuel delivery instantly if engine speed fluctuates.
We maintain a local stock across South Africa, keeping these essential components ready for immediate trade counter pickup or fast freight delivery.
Simply upload a clear photograph of your current sensor, engine data plate or component part number. Our technical team will quickly cross reference your images against our warehouse stock to identify the correct replacement part.
We will confirm the match and send a competitive, obligation free quote straight back to you.
SDEC Series Speed Sensors
Built to withstand heavy commercial vibrations, these sensors track flywheel rotation accurately to maintain a steady engine frequency.
Baudouin Series Speed Sensors
Designed for continuous emergency running, these sensors provide highly reliable speed tracking to prevent power drops under sudden loads.
FAW (FAWDE) Speed Sensors
Compact and dependable speed sensors built for light commercial standby generators to ensure smooth engine regulation.
Volvo Penta Speed Sensors
High accuracy tracking modules designed to integrate perfectly with advanced European electronic governors and control panels.
YTO Series Speed Sensors
Rugged sensors built to provide steady speed control for industrial and agricultural diesel engines.
Scania Series Speed Sensors
Heavy duty tracking sensors built for large multi cylinder engines to keep high capacity generators completely stable under full load.
Our generator speed sensors use high density copper induction windings enclosed in a heavy stainless steel sleeve. This durable engineering prevents signal breakdown over time, ensuring your electronic governor receives completely accurate frequency readings as the flywheel spins.
Sourcing high quality sensors guarantees that the electrical resistance and tracking curves match original equipment specifications, keeping your engine speed stable and preventing false over speed shutdowns during a power outage.
The Generator King offers complete system integration, stocking these certified tracking sensors alongside digital automatic transfer switches, electronic governors, and heavy duty starter motors.
A broken speed sensor usually reveals itself through the engine cranking energetically but failing to catch fire, or starting up briefly only to trip instantly on a "Loss of Speed Signal" or "Over-speed" fault on your digital screen. You might also notice severe engine speed hunting because the governor box is receiving dirty frequency data.
Sourcing original speed sensors requires precise mechanical gapping during installation. The standard field approach involves threading the sensor into the bell housing by hand until the magnet lightly touches a flywheel tooth top, backing it out by a fractional turn (typically three-quarters to a full turn), and securing the position with the locking nut.
The voltage signal produced by a magnetic pickup unit is relatively weak and highly sensitive to external electrical noise. Because generator enclosures contain high-output alternators, heavy starter cables, and direct-current battery lines that emit intense electromagnetic waves, unshielded wires would collect electronic interference, corrupting engine telemetry.
A high-quality magnetic sensor operates on magnetic induction rather than visual tracking, meaning a layer of clean engine oil or grease on the sensor tip will not stop it from reading flywheel teeth. However, if the oil contains fine metallic engine wear filings, these particles will cling to the permanent magnet tip, causing signal failure.
