Vigilant Systems supplies water supply monitoring equipment that reliably and accurately detects chemical concentration changes. These sensors provide a serial data output and list all elements detected and their relative proportions.
The passive systems draw 0.5 W per sensor and output data in a constant stream with detection lower bound equivalent to 1,000 ppm and an accuracy of ±100 ppm for a cost of £500 per sensor. The passive sensor may only be used on fluid material and has a temperature range of 223-573K.