The Bosch GTC 400 C Professional Thermal Camera has been designed for use in the following trades: heating, ventilation & air conditioning (HVAC), electricity, window installation or dry walling. Allows you to make detailed measurements and analyse existing conditions and heat distribution, so you can draw the right conclusions for your work There is an intuitive keypad for easy selection of functions and a large 3.5in colour display. Infrared sensor resolution of 160 x 120 pixels for detailed thermal images. You can save up to 500 images for easy inspection. For ease of use it offers a dual power source, it works with either a 12V Li-ion battery pack or standard AA alkaline batteries. Data can easily be transferred to the Bosch Measuring Master App (separate download required) via the integrated Wi-Fi hotspot or via the Micro USB port, you can easily transfer data to your computer. Specifications: Temperature Range: -10C to 400C.Measuring Accuracy of IR: 3.0C.Min Focus Distance:&