All Quansor monitors use the same QCM technology to detect target contaminants. In all cases, the sample flow is pumped across a crystal and the frequency response is converted to concentration measurement (such as X parts-per-billion) in a continuous readout. Monitors can have multiple targets, with generally a single sensor required for each targets. Product configurations include:
1. Post-treatment monitors
Post-treatment monitors are used to determine the breakthrough stage of a treatment column. The benefit is that the treatment column is used up to its breakthrough stage in complete safety; optimizing its efficiency and effectiveness. In this application, the sample flow is essentially clean water. It also has a predicable sequence of target contaminants. An example of this application includes the arsenic detector used for residential treatment columns. The cost is $375.
2. Pre-treatment monitors
This category includes the filtration means to clean raw water, removing gross contamination and biological matter. There will also be a means of separating potentially competing targets from the sample flow. An example of this application is the USGS monitors for determining individual chemicals in lakes and rivers. The cost will vary depending on the complexity of the sample matrix, with a ballpark of $5,000 – $10,000.
3. Hand-held samplers
This is similar to the pre-treatment application, although the sample flow may need manual sample preparation. An example is (a) a sampler to detect E. coli in spinach, (b) a sampler to measure heavy metals in a water source for the military.
4. Treatment with monitor
This possibility is discussed in terms of arsenic treatment, using a Quansor arsenic- sorbent evaluation device.
- All Quansor sensors operate in a continuous flow; outputting concentration data on a continuous basis
- Response times vary from a few seconds to longer depending on the concentration of the target
- The sensors do not require attendants; nor do they use reagents in their usual operating mode.
- Most sensors are automatically regenerated; this requires that regents be in place to effect the regen
- There is no adverse environmental impact from the Quansor sensor; either when in use or when regenerating the sensor.
- Some sensors will require upstream adjustments to the sample flow. If the composition of the upstream water matrix is known, a Quansor website will specify which [Quansor-supplied] plug-in device is needed. If the upstream matrix is unknown, Quansor will, for a fee, analyze the sample and provide the necessary adjustment column(s).
- The monitor is designed for use by non-chemists. A web-based application will guide the user in simple language for each monitor configuration.
 This will generally be a separations column; using proprietary Quansor technologies.