Thermal Imager For iOS Devices Has 10,800 Pixels To Deliver Excellent Resolution For Troubleshooting Hot And Cold Spots, Fits Phone Cases Up To 1/16-Inch (1.5 mm); Phone Cases Thicker Than 1/16-Inch (1.5 mm) May Require Removal Of Case For Secure Connection, Easily Capture, Store And Share Thermal Images And Video, Including Time-Lapse Video, Features Touch Screen Temperature, High/Low Temperatures, And Differential Temperature Readout View Temperature Ranges From -4 to 752-Degree Fahrenheit (-20 To 400-Degree Celsius) In Three Color Palettes; Ironbow, Rainbow, Or Grayscale, Includes High/Low Temperature Alarms To Monitor Systems, Compatible With iOS Devices 11 And Higher, Klein Tools Thermal Imager App Is Available For Free In The App Store, Durable 6.6-Foot (2 m) Drop Test Protection, Includes: Hard Storage Case With Carabiner And Instructions