Ulefone Power Armor 18T Ultra 5G Rugged Phone Thermal Imaging Camera 12GB+512GBMost Advanced Thermal Imaging Thermal by FLIR Lepton 3. 5 Power Armor 18T Ultra Version makes a dramatic improvement to thermal imaging, featuring the highest resolu tion FLIR Lepton to date, the Lepton 3. 5. This professional grade sensor brings 4 times the thermal resolution as the previous generations. With even greater thermal image detail and quality, it enables users to diagnose the leak, the damp, the draught, the blockage or the electrical