Image quality with IR resolution of 320 x 240 pixels (with testo SuperResolution technology 640 × 480 pixels) Thermal sensitivity <0.04 °C Full control: Manual focus and interchangeable lenses Free analytical software for creating professional reports Measurement site recognition and automatic image management App for analysis and creating on-site measurement reports Developed for service engineers, facility managers and building energy consultants: The testo 883-1 thermal imager is a reliable partner when carrying out your thermal measuring tasks. Its outstanding thermal image quality and useful features will enable you to save time and ensure perfect work results.