Testo 0560 8716 871s Thermal imager (240 x 180 pixels, App) w Wireless Connectivity 50T35 743 Handle: TH6 Quick Connect Handle SFPC Handle: TH6 Quick Connect Handle Rear Control Valve Twister® Tip: N A 5 Filter Size: 20 x 20 Color: White MERV Rating: 8 Package Length: 21 Package Width: 20 Package Height: 5 Country of Manufacture: United States The IFOV warner means the distance from the measurement object measurement spot size is determined and the measurement spot is shown on the thermal image – you therefore avoid measurement errors because the camera shows you exactly what you can measure Great image quality due to high resolution: 43