You can buy the 3d model from these links: 

https://www.cgtrader.com/3d-models/science/medical/infrared-thermometer-da1aabf8-8f13-42d5-b99b-eca14f06b40d

https://www.turbosquid.com/3d-models/infrared-thermometer-model-1531079

thank you :)