Our rotary sensors deliver high-precision angular measurement in demanding, high-performance environments. Designed for reliability and accuracy, they provide consistent, real-time position feedback across motorsport, automotive, and defence applications.
Engineered to withstand harsh conditions including vibration, temperature extremes, and dynamic loads, bf1systems rotary sensors enable accurate monitoring and control of critical systems supporting better performance, validation, and decision-making.
Explore our range below:
The KH21/22 Series of Non-Contact Rotary Position Sensors are designed to withstand the harsh environments of motorsport and automotive testing applications.
By using a proven ‘Hall Effect’ technology, the KH21/22 offers high performance and reliability at temperatures up to +150°C. Alternatively, they are capable of operational excellence in cold environments down to –40°C.
With a small and lightweight 22.5mm diameter body, the KH21/22 Sensor is ideal for many applications with typical applications including; throttle, gearbox and pedal position.
Download the datasheet: 
The KH31/32 Series of Female 1 or 2 Channel Rotary Position Sensors are designed to withstand the harsh environments of motorsport and automotive testing applications.
By using a proven ‘Hall Effect’ technology, the KH31/32 offers high performance and reliability at temperatures up to +150°C. Alternatively, it is capable of operational excellence in cold environments down to –40°C.
With a small and lightweight 22.5mm diameter body and standard size 32mm PCD Flange Mounting, the KH31/32 Sensor is designed for use on throttle bodies with an 8mm D Type Shaft; other installations include: gearbox and pedal position.
This IP67 rated sensor is available with either Single (3 wire) or Dual (6 wire) outputs.
Download the datasheet:
The KH41/42 Series of Non-Contact 1 or 2 Channel Rotary Position Sensors are designed to withstand the harsh environments of motorsport and automotive testing applications. By using a proven ‘Hall Effect’ technology, the KH41/42 offers high performance, reliability and operational excellence in extreme temperature environments between –40°C to +150°C.
The sensor has no moving parts; a magnet is inserted into the moving component with its Polarity Identifier in line with the cable exit. The sensor detects rotational movement and provides a linear output signal proportional to the rotational angle. This output can be measured on both Top and Bottom sides of the sensor body.
With a small and lightweight 23mm diameter body and standard size Flange Mountings, the KH41/42 Sensor is designed for use on throttle bodies, other installations include: gearbox and pedal position. This IP67 rated sensor is available with either Single (3 wire) or Dual (6 wire) outputs.
Download the datasheet:
