News — Infrared IR

About IR Thermometers: Distance to Spot Ratio

Infrared IR Temperature/RH Thermometer

About IR Thermometers: Distance to Spot Ratio

The actual area being measured is determined by the distance-to-spot ratio of the IR thermometer you are using, and this varies from model to model. As the distance from the object being measured increases, the spot size of the area being measured also increases. For example, Sper Scientific’s IR Pen has a distance to spot ratio of 1:1 meaning that at 1" from the target it will measures the temperature of a 1" circle. At 2" it will measure a 2" diameter and so forth.

Read more →


Sper Scientific Offers NIST Traceable Instrument Certification At Its Headquarters In Scottsdale, Arizona

Camera Infrared IR N.I.S.T. Certification Sper

Sper Scientific Offers NIST Traceable Instrument Certification At Its Headquarters In Scottsdale, Arizona

At Sper Scientific, we certify two categories of instruments:  Newly purchased instruments are certified prior to shipment, which may extend your order ship day by up to 10 business days. Not all instruments can be certified, when certification is possible an ordering option will appear on the product page. Previously purchased instruments are returned annually to Sper Scientific for certification, and may take up to 10 business days to certify. Purpose of the Program:There is an increasing requirement by customers for documentation supporting manufacturer’s claims of accuracy on their scientific equipment. This is partially due to the increasing acceptance of quality...

Read more →