Caterpillar S61: tougher, more useful The manufacturer Caterpillar expands its line of smart mobile phones with the CAT S61. It is a smartphone with exceptional resistance and exceptional functions such as a thermal camera, laser distance measurement or indoor air quality monitoring. And all this without neglecting the features of a first-class mobile phone. Perfect for the professional field ... Following the line of the S60, the CAT S61 is equipped with a thermal imaging camera. This tool allows you to identify problems related to short circuits, leaks, drafts or humidity.The 'Measure' application of this Caterpillar mobile combines the rear camera and an integrated laser to establish depth and calculate distances and surfaces. It is, therefore, ideal for preparing plans or calculating work budgets.Finally, another tool of the CAT S61 that you will not find in other mobiles is the air quality monitor. This terminal alerts you if the air indoors is unhealthy. For example, as a result of paints and solvents. It also offers you readings of temperature and humidity levels ... and a smartphone with great potentialBut, in addition, when you buy the Caterpillar S61 you get a smartphone with great specifications. Starting with its 8-core processor with 4 GB of RAM and its upgradeable Android Oreo version. The screen is 5.2 inches in Full HD resolution. It is reinforced with a Corning Gorilla Glass 5 glass and is compatible with gloves and wet fingers.In terms of photography, the 16 megapixel rear camera includes automatic focus and dual LED flash. The front camera, in turn, works with fixed focus and captures 8 megapixel images. Other features to consider are the NFC and the 64 GB of expandable ROM. Made to resist We cannot forget the resistance to shocks, water and dust. The CAT S61 is submersible up to 3 meters for 60 minutes, and also survives drops of up to 1.8 meters to concrete. Its MIL SPEC 810G military certificate shows that it also withstands high and low temperatures, in addition to humidity and dirt, on the other hand we find an outstanding long-lasting battery, with 4,500 mAh. This translates to 35 hours of 3G talk time or up to 37 days in standby mode.