PSP Alert Water
Rapid Saxitoxin Screening for Drinking Water
PSP Alert Water is a high sensitivity lateral flow assay adapted for freshwater samples, purpose-built to screen saxitoxin in drinking water. As rising temperatures increase the frequency and intensity of harmful algal blooms, our test helps water utilities, monitoring agencies, and public health teams detect saxitoxin contamination early and respond with confidence.
Designed for Drinking Water Testing
PSP Alert Water is adapted for freshwater samples, specifically drinking water. The test requires no complex extraction, no centrifugation, and no sample dilution. Users simply add the water sample to the prepared diluent powder vial, mix, incubate the sample with the test reagent for 10 minutes, apply the solution to the LFA and let it run for 10 minutes, and scan the result using the SensoRead reader.
Detects Below Drinking Water Action Limits
The lowest current saxitoxin limit in the world for drinking water is 0.2 ppb, as set by the Washington Department of Health. PSP Alert Water features a detection limit of 0.03 ppb, more than six times lower than this threshold. The assay also shows a clear visual response at 0.1 ppb, supporting early-warning detection before toxin levels reach regulatory concern.
Fast Digital Results
By pairing PSP Alert Water with the portable SensoRead reader, you eliminate the ambiguity of visual interpretation by delivering clear, objective digital results in any environment. This standardized approach ensures that whether you are on a remote shoreline or in a controlled laboratory, your screening remains consistent, repeatable, and free from human error, allowing for more confident decision-making.
Simple. Sensitive. Field-Ready.
With its easy workflow, no-dilution sample preparation, portable reader compatibility, and high sensitivity, PSP Alert Water provides a practical tool for rapid saxitoxin monitoring in drinking water and recreational water sources.
Why Choose PSP Alert Water?
No Extraction, No Dilution
Just add the water sample to the prepared diluent powder vial, mix, and run, no complex extraction, centrifugation, or dilution steps required.
Six Times Below the Action Limit
Calculated detection limit of 0.03 ppb, more than six times below the lowest 0.2 ppb drinking water limit set by the Washington Department of Health.
Early-Warning Visual Response
A clear visual response at 0.1 ppb supports early-warning detection before toxin levels reach regulatory concern.
Objective Digital Results
The portable SensoRead reader delivers objective digital results, reducing user interpretation in both field and laboratory settings.
Built for Water Monitoring
Designed for drinking water and recreational water testing, supporting water utilities, monitoring agencies, and public health teams.
Frequently Asked Questions
PSP Alert Water screens for saxitoxin, the compound responsible for paralytic shellfish poisoning (PSP), adapted for freshwater samples such as drinking water and recreational water.
PSP Alert Water has a calculated detection limit of 0.03 ppb, more than six times below the 0.2 ppb drinking water limit set by the Washington Department of Health, with a clear visual response at 0.1 ppb.
Add the water sample to the prepared buffer vial, incubate with the test reagent, apply the solution to the test cassette, and scan with the SensoRead reader. No extraction, centrifugation, or dilution is required.
The portable SensoRead scanner provides objective digital results, reducing user interpretation and supporting consistent screening in both laboratory and field settings.