Specialists in near-infrared measurement technology for industrial process applications.
Absorption Systems was founded with a focus on bringing accurate, practical near-infrared moisture measurement to industrial production environments. From the outset, our goal has been to develop instruments that are not only technically capable but genuinely easy to use and integrate on the production line.
Over the years we have developed and refined our NIR sensor range, building a portfolio of products trusted by manufacturers across food and beverage, animal feed, pharmaceuticals, chemicals, and building materials. The QN-100 represents the latest generation of our sensor technology — combining high-accuracy NIR optics with an integrated HMI and modern industrial communications.
We work closely with our customers from initial application assessment through to installation, commissioning, and ongoing support. Every QN-100 is backed by our applications expertise and commitment to long-term performance in the field.
Get in Touch →We design and build instruments to the highest standards of optical and electronic precision, because accurate measurement is the foundation of good process control.
Our sensors are built for the realities of industrial production — rugged enclosures, robust optics, and components selected for long service life in challenging environments.
We work alongside our customers to understand their process, configure the right solution, and provide commissioning and support to ensure the installation performs from day one.
We continue to invest in NIR measurement research and product development, evolving our sensor capabilities to meet the changing needs of modern manufacturing.
Choosing a moisture sensor supplier isn't just about a spec sheet — it's about who's on the other end of the line when you need help, and how well the sensor fits into the line you actually run. Here's what sets Absorption Systems apart.
Every QN-100 is designed and built in the United Kingdom, giving us direct control over component quality, build consistency, and the engineering behind every unit — meaning faster answers, tighter quality control, and a product built by engineers who understand exactly how it's meant to perform.
A compact, non-contact sensor head designed to fit tight installation envelopes without costly retrofits. It runs cool to reduce thermal stress on internal components, with no probe or wear parts touching your product — less maintenance, no contamination risk.
Every QN-100 uses Interpolated Baseline Correction (IBC), continuously recalculating the baseline from live reference readings instead of one fixed factor — more accurate across a wider moisture range, fewer false readings from scatter, and less time spent recalibrating.
The QN-100's three-filter NIR architecture puts that algorithm to work with filter sets chosen for your specific material — grounded in what actually happens on a working line: variable particle size, changing moisture range, and surface variation.
Direct access to field service engineers who install, calibrate, and troubleshoot on-site, an established distributor network across Europe and Asia for local language support, and application notes built for your specific product — not a generic manual.
The result: a sensor that's compact enough to install without disrupting your line, engineered to run reliably without adding heat or maintenance burden, and backed by a team who understands both the technology and your application — from first installation through years of production.
Whether you have a specific application in mind or just want to understand how NIR moisture measurement could benefit your process, we'd be happy to talk.