Self-Service Thermal Scanning
FeverWarn is so much more than a thermal scanner for temperature screening.
- Accurate infrared measurement that is FDA compliant.
- Non-contact, self-service thermal scanning.
- Provides outputs for triggering auxiliary doors or gates.
- Offers data compliance storage for legal protections.
Self-service temperature screening • Available local or cloud storage • Available outputs for door and gate security
Checks all the right boxes for temperature screening.
FeverWarn measures the accurate temperature of individuals through their fist in one second or less, and, in an orderly manner allowing for the recommended six feet of social distancing. The National Institute of Health has named the fist as a viable option for conducting a temperature check.
FDA compliant thermal scanning
Accuracy to +/-0.9°F +/-0.5°C
Self-servicing, no human intervention required
Data reporting to shield from future liability
Auxiliary USB outputs for card readers, doors and gates
Designed, built and shipped in the USA
Self-service scanning with reliable results in one second or less!
Simply place your first under the scanner (1-4 inches away) and less than a second later you will get either a red or green light or optional speaker models can announce the next steps.
The wrist and fist areas are ideal for infrared scanning because the arterial blood flow is close to the skin and has been studied by numerous health organizations and major universities for its effectiveness and accuracy. In addition, the wrist doesn’t share the issues most commonly noted with forehead scanners of perspiration, hair, hats or makeup. Fist forward is perfect for easy temperature scanning and monitoring.
The Science of Fist-Forward Temperature Scanning
University studies report the fist/wrist as one of the most reliable areas for thermal temperature screening
Many people are familiar with infrared (IR) skin temperature devices being used to monitor forehead skin temperature. But due to different heights, heavy perspiration of the forehead area, hair, makeup, and other facial coverings, the readings can be compromised and often require secondary scans. In fact, thermal scans can be taken in many places on the human body, especially those regions where arterial blood flow is present. Still, some areas, including the fist, are best to correlate with mean body temperature (MBT), which is used to measure fever.
Another reason the fist/wrist area was selected as an optimal temperature scanning is because people can easily manipulate their arm/hand and scan themselves. In contrast, people of different heights would require multiple scanners to achieve the same results with a forehead scanner. Besides, research and even warnings by manufacturers of forehead thermal scanners have established that their readings can be compromised by forehead perspiration, makeup, hair, and other coverings.
Camera thermal scanning systems are also available on the market. Still, they are expensive, and a high resolution camera is necessary to direct the image to the correct facial areas. Also, infrared cameras cannot be used outdoors due to the interference of the sunlight's infrared rays which, will impact the results.
In all cases, skin body temperature and core body temperature will differ by one to two degrees, but they do correlate well to detect fevers. Many noted universities studies have established that although different skin temperatures (hands, legs, feet, stomach, chest, and forehead) may not be the same, they still correlate well with mean body temperature (MBT). These same studies have shown that the fist/wrist area is one of the most reliable and steady skin temperature thermal scan areas because it is less affected by thermal activity.
Thermal scanners work best used in high blood flow areas. These areas typically include the forehead, upper and lower arm, back of hand, chest, stomach, thigh, anterior calf, posterior calf, and the foot instep.
Most high blood flow areas are covered during the typical presentation of a person. The forehead and the back of the hand/wrist or fist are the best areas to measure skin temperature correlated to mean body temperature. The wrist/fist area is an ideal thermal scanning area due to a lack of perspiration, head coverings, makeup, and hair.
Make A Fist, See For Yourself
Increased body temperatures spreads to the skin via blood circulation. The skin surface of the hand, due to exposed high arterial flow, responds easily and steadily to changes in mean body temperature. Results are repeatable and steady with +/- 0.5 degrees.
Try it yourself. Make a fist. You can clearly see the arteries in the hand leading to the fingers. The closeness of these arteries to the skin wall makes this area ideal for self-scanning and produces excellent results across a vast majority of the population.
Why the Wrist Beats the Head in Temperature Scanning
- Virtually no perspiration vs. heavy perspiration of forehead which interferes with thermal scanning.
- Reduced hair on wrist/fist vs. possible hair interfering with forehead thermal scanners
- No makeup on wrist/fist vs. eye and skin makeup on head thermal scanning
- No interference by hats and face covering, which is commonplace with head thermal scanning.
- Easy self-serving without danger of personnel exposure prior to results
The back of the hand has ideal arterial blood flow, which accurately correlates to mean body temperature. Research confirms, the back of the hand has one of the most steady readings which is ideal for thermal scanning.
So much More than a Thermal Temperature Scanner...
FeverWarn is Your Expert Witness for Ongoing Compliance Reporting
With CDC's recommendations to monitor employee health and take measures to protect your employees. Compliance data backups and full reporting are an important part of avoiding future workman's compensation or liability claims.
- Legal experts claim that following all CDC recommendations and being able to prove such will help insulate you against legal claims.
- Most handheld thermal scanners and even many thermal scanning systems have no way of retaining data or generating visual reporting.
FeverWarn Data Thermal Scanner Storage Options
- 100 Series: Local on board storage with 16GB storage for up to 20 million scans. Can be exported into CSV format for manipulation. Phone visualization for daily scans.
- 200 Series: Local and cloud storage available through Microsoft Azure. Visualization available for up to 6 months of data. CSV reports available for download. Also includes microservices for email and text alerts.
Feverwarn offers legal liability coverage, including:
- Storage of scanned temperature data
- Storage of calibration logs confirming valid calibration
- All data from visitor waiver form (Users can use FeverWarn visitor waiver mobile app where all stored data can be downloaded from the cloud or local storage.)
FeverWarn offers either local storage (for up to 20 million scans) which is downloadable to a smart device for CSV file handling or cloud storage depending on model specified.
So much More than a Thermal Temperature Scanner...
Outputs for Integration with Doors, Gates and Employee Tracking Systems
Models 200 and 230 FeverWarn Thermal Scanning Systems include a built-in serial relay controller which can be used to send outputs to auxiliary devices, including gates and security doors. The relay controller supports RS232/485 Modbus protocols and Ethernet controllers.
Integration with Employee Card Readers
An RFID smart card reader can be plugged into the FeverWarn USB adapter enabling communications with the FeverWarn system.
Microservices can be used to send alerts, emails, and other data to devices on the network.
Integration with Automatic Door/Gate Systems
Types of Infrared Thermal Scanners
There’s Lots of Ways to Measure Temperature…But Few Include All the Advantages of FeverWarn.
Accuracy. Reliability. Safety.
FeverWarn is ideally designed and positioned to offer advantages in self-service monitoring, proven accuracy, data storage and USB outputs all at a reasonable price and easy installation over alternative thermal scanners.
Forehead Thermal Scanner
Most Infrared forehead temperature guns, although accurate and affordable, require human interaction and do not allow for proper social distancing. Sun, makeup, and varying heights also add to the difficulties of measuring the temperature from the forehead.
Uses same infrared technology as FeverWarn. Compromised by forehead perspiration, hair, makeup and head coverings not found on wrist measurements
Accuracy depends on perspiration, makeup, hair and positioning distance
Head covering would need to be removed
Human intervention required
No data outputs for provable future compliance defense
No data outputs for auxiliary devices
FeverWarn Infrared Fist Artery Thermal Scanner
FeverWarn uses the same infrared sensors as other thermal scanners, but has been specifically designed for fist/wrist artery temperature scanning, which is not subject to high perspiration, significant hair, head coverings or make-up.
Manufactured in the USA
Consistent accuracy not compromised by forehead perspiration, make-up, hair and head coverings
Sensor location is not compromised by UV sunlight
Offers either local or cloud data storage to preserve compliance with monitoring guidelines
No additional intervention or supervision required as with handheld temperature guns
Offers output signals for doors and gates as well as integration with employee card systems
Convenient stands and shrouds available to assist installation
Camera Based Thermal Scanner
Thermal scanning cameras, while accurate, are expensive, and in some cases where facial recognition is used can cause privacy concerns.
No human intervention required
Some models provide data outputs for future compliance defense
Some models provide data outputs for auxiliary devices
Most use similar infrared sensor principle as FeverWarn
Accuracy depends on exposure to UV sunlight, makeup, facial coverings and distance and resolution of camera
Not recommended for crowd scanning unless very high resolution camera, should primarily be used for individual scanning as with FeverWarn.
Typically require separately sold computer interface not included
Proven. Reliable. Safe. Secure.
Which FeverWarn Thermal Scanner is right for me?
Find the perfect model for your installation.
FeverWarn Thermal Scanner Models
|Mobile app to calibrate and
view last 24 hours of data
|Visitor waiver form for visiting guest|
|Local storage (20M scans)|
|Field thermal scanner calibration|
|Optional outdoor hood
(Model FW-FS-40) (Model FW-FS-30)
|Update via mobile app
(cloud or mobile)
|Auxiliary USB outputs for gate/door|
|Manage multiple locations/gate|
|Two-years of cloud data|
|Automatic update of software|
|Rest API to pull cloud data|
Frequently Asked Questions
Q. What is FeverWarn?
- A. FeverWarn is an IoT-based, skin temperature scanning system from MachineSense. The current models scan skin temperatures at entrances to act as your virtual screening tool without the need for personnel to hold IR scanning devices and compromise social distancing rules. The data is then captured and can be integrated into any third-party IT system.
Q. What does the FeverWarn system include?
- A. The system includes a bracket for the easy mounting of one infrared, touchless temperature sensor to be installed in either a fixture or entryways so that infrared radiations from a human body can be measured for elevated temperatures. The sensor measures the surface temperature by detecting infrared radiation energy and wavelength distribution. The IR temperature probe consists of an optical system, photoelectric detector, amplifier, signal processing, and output module. The optical system collects the infrared radiation in its field of view, and the infrared radiation energy is converted into corresponding electrical signals when converging on the photoelectric detector. It operates from 3.3 to 5 VDC. Data is sent to a data hub via BLE/I2C at a rate of up to 1000 samples/sec.
- Data hub/Intelligence IoT Edge Module. This device reads all the signals from the sensor, calibrates the reading, and signals whether a high-temperature reading is detected. An LED light indicates that result. The alarm can be integrated with an automated-door system via a relay. The module can also be connected to a cloud application where the user can see all the statistics recorded over the past three months.
- LED lights signal go/no-go from the temperature reading or an upgraded model utilizes speaker announcements that provide instructions (user-customizable) to individuals passing through the system.
- CrystalBall Software Platform. Each company can register their company name and product serial numbers in the MachineSense CrystalBall software platform. Each scanned entrant is recorded with a time stamp. This access is included free of charge on all software included models for one year. After one year, it can be renewed at $10/month or $100/year. (Software access is not available on all models.)
Q. What are the power requirements?
- A. 110/220V, 60Hz AC power supply will power FeverWarn.
Q. Can I integrate FeverWarn to automated doors and gate systems?
- A. Yes. Feverwarn’s Edge module offers a relay signal to integrate with automatic openings. Feverwarn sends an ON/OFF relay based on a go/no go temperature via USB. A customer can purchase an appropriate USB relay converter for their relay system to automate door operation.
Q. How does FeverWarn differ from other thermal scanners?
- A. FeverWarn is a patent-pending system developed by an IoT company MachineSense, LLC. and its partner Novatec, Inc., a US manufacturer with more than 50 years of experience in industrial equipment. The following are the unique features of FeverWarn when compared to other products.
- It is easy to install at doorways, entrances, and employee check-in systems, etc.
- It can be integrated with automated doors via relay and is offered with Modbus and UART.
- Alarm and statistics can be sent to the cloud. Deployers can receive alerts with a timestamp via SMS text messages or emails.
- Alarms and other statistics are available over REST API to integrate with any existing ERP systems.
- For large scale deployments, it offers an auto-calibration system for easy maintenance.
- It is calibrated using the human body to maintain calibration easily.
Q. What are the typical applications?
- A. FeverWarn’s initial products are designed especially for doorways at building entrances. FeverWarn assures employees and customers of an efficient screening process without violating social distancing standards. Custom configurations for other applications can be discussed with our engineering group.
Q. How do you calibrate FeverWarn?
- A. Each sensor is factory calibrated. If field calibration is required, customers can conduct their calibration by manual or automatic calibration process using the “MachineSense IoT Support” mobile app. In manual calibration mode, the human body temperature must be taken as a reference. In auto-calibration mode, the reference temperature will be taken from the calibrator by the device automatically. The calibration certificate will be readable from the web/mobile app. For bulk installation and operation, customers can purchase an auto-calibrator for automatic calibration of the system.
Q. What are the disadvantages of handheld forehead scanning?
- A. Handheld forehead scans can be compromised by forehead perspiration, hair, makeup, and head coverings. These known issues are not associated with fist/wrist scanning.
Also, human intervention is required for forehead scanning eliminating the opportunity to maintain proper social distancing.
No automatic data outputs are available for provable compliance and defense, if needed. No data outputs are available to connect with auxiliary devices for automatic opening of doors, gates, or integration with employee card systems.
Q. What are the disadvantages of thermal imaging?
- A. Non-contact thermal imaging has several restrictions. Although skin temperature is a good indicator of a core body temperature, scanning skin temperature automatically can be difficult. The reliability of scanning the skin temperature depends on factors such as the use of makeup, skin color, sweating, exposure to ambient temperature, etc. Depending on those factors, error margins can be increased. That’s why the FDA recommends that if an elevated temperature is detected, a proper contact thermometer should be used to confirm a fever.
Q. Why is the fist used for temperature?
- A. Fever is a rise in core body temperature. Blood vessels carry the temperature to the skin. That’s why the skin on top of the arteries is the best location for scanning a non-contact temperature. The fist has several arteries under the skin surface
Q. How does the fist correlate to the forehead scanning?
- A. Fist and forehead temperatures go up and down with respect to body temperature exactly in the same way. If the fist temperature is known, the core body temperature can be predicted in the same way as the forehead.
Q. What are the advantages of FeverWarn cloud storage vs. local storage?
- A. Cloud storage offers significant advantages over local storage systems, including:
- If you have multiple scanning systems in numerous locations, all the data will be stored and viewed in a single app. This provides easy access to a centralized system.
- Email/SMS texts will be sent to designated persons as soon as an elevated temperature is detected.
- Software features will be automatically updated.
- Data can be seen anywhere, anytime, as opposed to a mobile app where data can only be seen when close to the device.
Q. Where is FeverWarn manufactured?
- A. Baltimore, Maryland – USA
Q. Which cloud service is used with FeverWarn?
- A. FeverWarn is built on the Microsoft® Azure Cloud platform. The servers are in Virginia, USA.