"This product is operated by the ""Thermal Viewer"" software on the mobile phone after connecting to the mobile phone for Android system. It is very simple to view the infrared images or measure the s more→urface temperature of the objects, this product can be used for HVAC, building heat difference detection, equipment troubleshooting, preventive and predictive maintenance, etc. Features: Thermal imaging can be used day and night, as long as the object (thermal energy) emits infrared light, it can receive images within a certain distance. Easy to use, you just need to download the ""Thermal Viewer"" software on the mobile phone, then insert the thermal imager into your phone and the ""Thermal Vi…