The KHM Series Rotary Position Sensor from CTS Corp. - compact hall module for tight automotive spaces
24.06.2026 - 04:18:01 | ad-hoc-news.de
Reviewed: ad hoc news Accessory & Components desk. Edited and checked on 2026-06-24, 04:15. Details in the imprint.
CTS KHM Series Rotary Position Sensor sits almost hidden beside a steering column, its small plastic body clicking softly as a technician turns the shaft by hand. You feel a clean, even resistance, no scratching, just a smooth arc that tells the ECU exactly where it is.
What the KHM sensor does
The KHM Series from CTS Corp. is a non-contact rotary position sensor that uses Hall-effect technology to measure shaft angle in automotive and industrial systems. It is designed for applications like electric power steering, transmission range selection, and pedal modules where durability is critical.
Instead of a wiper gliding over a resistive track like in old potentiometers, the KHM sensor reads a magnet field, so there is no physical contact between moving and sensing elements. That reduces mechanical wear and helps the module keep its calibration over long service intervals.
Compact housing for tight spaces
Product manager John H. Kauffman from CTS likes to point out how small the KHM housing is when you hold it between thumb and forefinger, leaving plenty of room around a crowded steering rack. The body is typically only a few centimeters across, with a slim profile tailored for crowded engine bays.
The shaft coupling is designed to accept different customer geometries, so tier-1 suppliers can integrate the sensor on their own linkages without bulky adapters. That modular approach lets one basic sensor platform serve several programs, which reduces engineering time and tooling costs for OEMs.
Background on CTS Corp shares
From sensors like the KHM Series to actuators and electronic components, CTS revenue is closely tied to automotive and industrial demand, and investors track these niches when valuing the company.
Sealed design for tough duty
The KHM Series uses a sealed housing concept to keep dust, oil mist, and splash water away from the sensing electronics. That is essential near gearboxes and under hood, where hot transmission fluid fumes and road grime attack exposed components over years of operation.
The integrated connector points straight out of the body and supports automotive-grade harnesses with secondary locking, so the plug does not rattle loose when a car hits potholes or spends hours on rough roads. That robust connection is often the difference between a quiet warranty department and a field recall.
Signal output and calibration options
CTS configures the KHM Series with analog output, so the module delivers a voltage proportional to angle, typically in the 0.5 to 4.5 volt range over the defined rotation. This keeps compatibility with standard engine control units that expect ratiometric signals.
Within that range, customers can specify effective travel up to around 360 degrees, with start and end points tuned to their mechanism. That way, an OEM can have full-scale output over a narrow arc for a selector lever, or over a wide arc for a steering angle application.
How it feels in the workshop
When mechanic Lisa Rodriguez clips a multimeter across the output and ground, then slowly turns the shaft, the reading rises in a steady, calm sweep. There is no jitter, no sudden jumps, just a tidy voltage ramp that makes calibration feel straightforward.
The smooth rotation and lack of mechanical detents make it easy to adjust a linkage position while watching live data on a diagnostic tool. For workshop staff, that saves minutes on every job, and it reduces the chance of misalignment that would trigger fault codes later.
Where the limits show
For all its neat packaging, the KHM Series is not a universal answer. It is an analog sensor, so very long wiring runs or noisy environments might require extra shielding or filtering on the customer side to keep the signal margin solid.
And while the sealed housing handles splashes, it is not meant to be submerged continuously, so deep off-road water crossings or certain marine installations may call for even more rugged specialty hardware. CTS offers other product families for those extreme cases.
Context and CTS shares
CTS builds sensors, actuators, and electronic components that end up in cars, industrial equipment, and medical devices, with the KHM Series sitting squarely in its automotive sensor portfolio. CTS Corp shares (ISIN US1263071060) trade on Nasdaq in US dollars, giving global investors direct exposure to this component-driven business.
Key facts on the KHM Series sensor
- Product: KHM Series Rotary Position Sensor
- Manufacturer: CTS Corporation
- Category: Accessory/Component sensor for automotive and industrial systems
- Launch: In market for several years, with ongoing program updates
- RRP / Price: Project-based pricing, typically negotiated with tier-1 suppliers rather than retail
- Availability: Supplied directly to OEMs and tier-1 suppliers worldwide, not sold through standard retail channels
- Target group: Automotive and industrial engineers integrating non-contact rotary sensing into steering, transmission, and actuator systems
- Highlight / USP: Compact, sealed Hall-effect rotary sensing platform tuned for harsh automotive environments
This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.
