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Tools to collect and measure odors
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Measure Odors with Precision
The Nasal Ranger provides a precise odor strength measurement that is consistent from place to place.
Truly Easy Odor Measurement
Not only easy to use, the Nasal Ranger epitomizes "user-friendly".
The Nasal Ranger Package
The Nasal Ranger - Nasal Mask - Comfort Seals (10pk) - Mask Wipes (10pk) - Universal Odor Filter Cartridges (2 pair) - Barrel Cleaning Brush - Operations Manual - Calibration Certificate
Portability & Ease of Use
The Nasal Ranger allows the facility to quantify odors around the perimeter in the surrounding community.
The Nasal Ranger offers an innovative easy-to-use alternative to guessing odor strength.
Universal Odor-Filter Cartridges
Easy to replace odor-filter cartridges contain a proprietary blend of granular carbon to create odor-free dilution air.
Calibrated for Accuracy
The Nasal Ranger uses a calibrated flow sensor to assure users a consistent inhalation rate.
Quantify odor strength using standard D/T ratios:
60, 30, 15, 7, 4, and 2
Custom D/T Nasal Ranger Dials
High D/T Dials (500, 400, 300, 200, 100, and 60)
and custom ratios for your needs.
Evaluate Odor Mitigation
With the Nasal Ranger you can evaluate odor mitigation methods and control effectiveness.
Municipal Waste Handling
The portability and ease of use allows odor quantification around municipal waste handling facilities.
Teflon coated carbon-fiber epoxy, ergonomically designed to fit your nose comfortably with a foam comfort seal.
Monitoring with the Nasal Ranger facility-wide for odor management.
Fun and Approachable
Operating the Nasal Ranger easy enough for a child!
Identify Odor Sources
Used to investigate and quantify odor sources, the Nasal Ranger confirms successful process changes.
Community Odor Monitoring
With the Nasal Ranger, you can investigate citizen odor complaints critical for determining odor sources.
Create Credible, Defensible Evidence
Monitoring daily industrial operations, the Nasal Ranger documents baseline conditions and specific odor episodes.
Confidently determine odor with the Nasal Ranger at operations under compliance surveillance.
Routine odor monitoring provides confidence that mitigation efforts are successful.
Nasal Ranger Training
A focused Nasal Ranger training course gives users extensive knowledge and experience.
The Nasal Ranger opens doors and creates interest in community odor issues.
Ambient Environmental Odors
Verification of odor dispersion modeling requires confident "ground proofing" of ambient odor.
North America, South America, Africa, Europe, Asia and Australia ...
...too cold to smell in Antarctica!
The Nasal Ranger successfully determines odor annoyance thresholds.
Nasal Ranger is the “state-of-the-art” in field olfactometry for confidently measuring and quantifying odor strength in the ambient air. The portable Nasal Ranger Field Olfactometer determines ambient odor Dilution-to-Threshold (D/T) concentration objectively with your trained nose.
The Nasal Ranger Package includes the Nasal Ranger with Nasal Mask, Odor-Filter Cartridges, Shoulder Strap, Carrying Case, as well as and extra pair of Odor-Filter Cartridges, 10-Comfort Mask Seals, and 10-Isopropyl Alcohol Mask Wipes.
- Precision instrument for measuring ambient-odor
- Portable odor detecting and measuring -
Scentometer, US-EPA protocol.
- Discrete calibrated dilution ratios:
standard and custom ranges available.
- Inhalation Rate “feed-back” for 16-20 liters per minute
- Easy to change odor filter cartridges.
- Ergonomic, comfortable sniffing mask with inhale & exhale ports.
Standard Dilution-to-Threshold (D/T) Ratios: 2, 4, 7, 15, 30, and 60
High Range D/T Ratios available: 60, 100, 200, 300, 400, and 500
Custom D/T Ratios available to your needs.
Accuracy: +/- 10% Calibration
Weight: 2.0-lbs (0.91 kg)
Dimensions: 14" L x 7.5" H x 4" W (35.5 x 19 x 10 cm)
Q: Where can I buy a Nasal Ranger?
The Nasal Ranger may be purchased by contacting St. Croix Sensory directly, or contact an authorized Nasal Ranger representative found at the link below.
Q: What does the Nasal Ranger measure?
The Nasal Ranger Field Olfactometer quantifies the perceived odor level as dilutions-to-threshold (D/T). This is determined as the number of dilution needed to make the ambient air odor just detectable.
Q: Who can use the Nasal Ranger?
Almost anyone can use the Nasal Ranger! Commonly, air quality control managers, municipality managers and regulators, facility operators, and citizen groups are using the Nasal Ranger to quantify ambient odors.
Q: How often do I need to change the odor filter cartridge?
The life of the odor filter cartridge will depend on how often it is used and the strength of the odors that it is filtering. A reasonable rule-of-thumb is to replace the cartridge after 200-hrs of field use. Stronger odors may require more frequent replacement. Please see this video for additional information and demonstration of filter replacement.
Q: What is the difference between Field Olfactometry and Laboratory Olfactometry?
Both threshold results are based on the dilution-to-threshold principle and are thus a similar measure. Laboratory olfactometry, following ASTM E679 and EN13725, is best utilized when source odors are being measured (e.g. source stack emission). Air dispersion modeling is then utilized to predict the impact of those source odors on the community. Field Olfactometry is performed to quantify the odors in the community; therefore, it is a direct measure of the community impact at that specific moment in time.
Q: How frequently should my Nasal Ranger be calibrated?
The Nasal Ranger should be sent to St. Croix Sensory for annual calibration verification.
McGinley, M.A. and McGinley, C.M.
American Society of Agricultural Engineers - 2004 Annual Conference
Ottawa, ON, Canada: 1-4 August 2004
Hamel, K.C., Walters, L., Sulerud, C., & McGinley, M.A.
WEF - Residuals & Biosolids Management Conference
Salt Lake City, UT: 18-21 February 2004
McGinley, M.A. and McGinley, C.M.
International Water Association 2nd International Conference on Odour and VOCs
Singapore: 14-17 September 2003
Authorized Nasal Ranger Representatives Outside of North America
Environmental Management Australia
Seoul, South Korea
Esensing Analytical Technology Co. Ltd.
Import Trading, S.A.
(Argentina, Brazil, Paraguay, Uruguay)
(Singapore, Malaysia, Thailand, Indonesia, Philipines)
Tigret S.p. z o.o.
Crestwood Environmental Ltd.
(England, Scotland, Ireland, Isle of Man, and Channel Islands)
(UAE, Saudi Arabia, Qatar, Kuwait, Yemen, Egypt, and Bahrain)
St. Croix Sensory is ISO/IEC 17025:2005 Accredited