COVID-19 Response

St. Croix Sensory remains open and committed to the success of your project needs throughout the COVID-19 pandemic.

For the safety of our clients and staff, we have outlined our “Best Practice Recommendations” for the use and care of the Nasal Ranger Field Olfactometer, Odor Sensitivity Test Kit and odor sampling equipment.


Learn More

Odor Sensitivity Test Kit

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    Odor Sensitivity Test Kit
    The Odor Sensitivity Test Kit includes the set of odorant pens, eye shade for the test subject, gloves for the test administrator, a test procedure, and data sheets.
    Odor Monitor Screening
    Test the olfactory sensitivity of odor monitors. Monitors should be screened for inclusion and monitored routinely for confirmation.
    Standard Methodology
    The olfactory test kit, Sniffin' Sticks, is a standard test methodology for testing olfactory sensitivity.
    Sensitivity Monitoring
    The test kit should be administered regularly to confirm sensitivity of the subject has not changed.

    The Odor Sensitivity Test Kit is used to test the olfactory ability of your odor inspection staff.  This portable, simple to use kit makes it easy to screen potential noses and continually monitor their olfactory acuity.

    St. Croix Sensory’s Odor Sensitivity Test Kit is utilized to test the noses of potential odor inspectors.  The n-butanol odorant pen dilution series provides a standard measure of sensitivity.

    It takes approximately 20-minutes to complete the test for one user. 

    Watch the video to see how the test is administered.  

    Note: this video was updated in June 2020 with specific precautions for COVID-19.


    Test Kit
    Dimensions:   17.125 x 13 x 2.25″ (43.5 x 33.0 x 5.7 cm)
    Weight:           1.8 lb (0.8 kg)

    Individual Pen
    Dimensions:   Diameter 0.625″ (1.6 cm)   Length  5.625″ (14.3 cm)
    Weight: 0.5 oz (14g)

    Kit Contents:

         14 test pens containing n-butanol
         2 blank pens
         Eye mask blindfold
         Gloves for Test Administrator
         Test Procedure (you can also print from “Download” section)
         Test Data Sheets (you can also print from “Download” section)
         Test Record 
         Serial Number Sticker with Expiration Date
         Convenient Test Kit Packaging

    Q: What is the shelf-life of the kit?
    The odor sensitivity test kit has a 6-month or 50-use shelf life.

    Q: What is the odor in the pens?
    The odorant pens contain n-butanol at varying dilutuions.  Pen #15 is highly diluted that is noticed by only a small percent of the population.  Pen #2 is strong n-butanol that is noticed by almost the entire population.

    Q: What is a normal testing score?
    Studies have shown a normal score in the population is pens 7-9, depending on age.


    Top Notes from the Lab