Omega Engineering Inc.The OS540 infrared thermometer from Omega Engineering Inc. is suitable for noncontact temperature measurement applications such as diesel and fleet maintenance, in-process temperature measurement, fire and safety, plastics molding and food safety. This handheld infrared gun provides circle or dot laser sighting, a range from -20 to 420 °C, resolution of 1 °C/1 °F and repeatability of ±1 °C. Other specifications include fixed emissivity of 0.95, spectral response of 6 to 14 mm and a response time of 500 ms.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra September 2022 IssueLight-Dependent Resistor PhotocellsCadmium Sulfide (CdS) Light-Dependent Resistors (LDRs) from Advanced Photonix Inc. are designed for visible light measurement from 400 to 700 nm. 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