Generally, measuring an employee’s body temperature is a medical examination. Because the CDC and state/local health authorities have acknowledged community spread of COVID-19 and issued attendant precautions, employers may measure employees’ body temperature. However, employers should be aware that some people with COVID-19 do not have a fever.

A: No, thermal imaging cameras cannot be used to detect or diagnose an infection. PWT thermal cameras are used today in public spaces by essential services such as shopping malls and Gyms as an effective tool for measuring skin surface temperature. People who are identified as having an elevated skin temperature can then be screened by medical professionals.

A: Here are several tips to ensure optimal measurement performance from a PWT thermal camera:

• Screen people, one at a time to look for temperature anomalies.
  Screen people from 1 to 2 meters (3 to 6 feet) away.
  Measure temperature near the tear duct (at the inner canthus) as this location provides the closest temperature correlation to the human core body temperature. This is not measuring core body temperature and readings near 35°C (95°F) are common.
  Perform secondary screening on individuals with elevated skin temperature using a medical device designed specifically for measuring body temperature, such as a thermometer.

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PWT thermal cameras detect heat radiation and can be used to identify the surface temperature of objects and people. With this capability, PWT thermal cameras are commonly used as a non-contact screening tool to detect differences in skin surface temperatures and pattern changes.

In order to obtain a good temperature reading, it is recommended that the intended target be as close to the camera as possible.

It is important that the application is set up so that all intended targets are in focus during the screening process, thereby creating a good image.

• Adjust the infrared image (automatically or manually)
  Select a suitable temperature range
  Select a suitable color palette
  Change the measurement parameters

Here are several tips to ensure optimal measurement performance from a PWT thermal camera:

• Screen people, one at a time to look for temperature anomalies.
  Screen people from 1 to 2 meters (3 to 6 feet) away.
  Measure temperature near the tear duct (at the inner canthus) as this location provides the closest temperature correlation to the human core body temperature. This is not measuring core body temperature and readings near 35°C (95°F) are common.
  Perform secondary screening on individuals with elevated skin temperature using a medical device designed specifically for measuring body temperature, such as a thermometer.

PWT thermal cameras “see” or detect the temperature differences with accuracies of ±0.3°C (0.5°F) at the recommended ambient temperate of 30°C to 45°C (86°F to 113°F). The standard PWT product accuracy specification of ±2°C or 2% of the temperature reading at 30°C (86°F) ambient environment applies to all temperature ranges it measures and for the multiple applications for which it can be used.

It’s important to note there are many factors that can affect the accuracy of thermal cameras, such as focus, distance, the emissivity* of the target, the ambient environment, and the speed at which the temperatures are acquired.

PWT recommends that thermal camera operators should schedule a crash course of thermal imaging training from our staff. This is not a medical training or medical certification, but it provides a baseline understanding of thermography.

Support: 24/hours | team@pwtsafe.org

TOP THE VIRUS.

• The UNV Advanced Thermal Screening Solution takes less than one second to detect the temperature of a person
• Can detect Multiple People Simultaneously
• Non-contact measurement to avoid physical contact – Completely Non Contact Safe Measurements
• Immediate Alarms – Less than half a second to generate an alarm
• Advanced AI Algortyhm detection to reduce false alarms from other heat sources
• Complete With Free On-Site Commissioning and Training

• Spectrum Advanced Thermal Screening Camera
• ​Thermal Emitting BlackBody for Highly Accurate Readings
• Thermal Reading Software
• Tripods and Adaptors for Fast Deployment
• PC is required for viewing/recording images – see spec for minimum PC requirements