Features: Thermal imaging can be used 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 Viewer" software will be opened automatically. If your phone does't have USB Type C interface, please use original adapter for conversion, the product contains an adapter. Made of fine quality materials, practical and has a long service life. There is a small storage box that can protect the thermal imager for easy storage. Function: center point temperature display, point temperature measurement, image fusion, mirroring, temperature unit setting, palette setting, face detection On/Off, taking photo, video recording, picture/video viewing. Specification: Material: metal Color: black Measuring range -20°C-400°C Measurement accuracy 160X120 Resolution 160X120 Size:68×34×14mm Type: IOS,Android Type C, Android Micro Package Included: 1 * Mobile Phone External Thermal Imager