EnSURE™ Monitoring System

Superior Performance

The data speaks for itself. The most comprehensive evaluation of ATP hygiene monitoring systems has been completed by one of the world’s premier food and beverage reference laboratories. They evaluated these four key areas of performance.

The linearity graph shows a direct, proportional, straight-line relationship between RLU and ATP for the Hygiena™ system. The closer to linear a system can get, the more precise and reliable the results will be. Systems that deviate from linear offer less reliable results and less sensitivity. The data in the graphic shows the Hygiena™ system is among the most linear on the market.

Repeatability is described by the Coefficient of Variation (CV). The higher the CV, the greater the variability between each result with the same sample. More variability means the results are more inconsistent and unreliable. The graph shows that Hygiena™ systems consistently deliver dependable results with the lowest CV.

Sensitivity is defined as the Limit of Detection (LoD). It is the smallest amount of ATP detectable above the background noise of the system. Background noise is the RLU detected by the system in the absence of ATP. Background noise may come from both the instrument (as electrical interference), and the reagent swab device (as chemical interference). Hygiena™ systems detect the lowest levels of ATP.

To test accuracy, 100 fmoles of ATP was added to each test device and measurements were taken (using 10 replicates) to determine how much of the available sample was actually detected. Results less than 100% indicate that only part of the sample was detected due to some interference within the system. Results over 100% indicate extra signal coming from the test device. Hygiena’s system is the closest to 100%, thus the least variable.