This simple portable infrared thermal imager with the built-in lithium battery, so you can use it So you can use it more conveniently, with 1.8 inch TFT display screen for you to see the imaging more clearly, if you need it, come and have a try, it will not let you down. Features: 1.8 inch TFT display screen for you to see the imaging more clearly, give you a better using experience. Temperature measurement ranges is 0~80 that can meet your most needs. Portable size and easy to carry, you can take it with you to anywhere you want to use it. It can be applied to check electronic products and has a wide applications. Built-in lithium battery, so you can recharge in time when there is no electricity, no need to worry about the sudden power failure affecting the use. Specifications: Material: PCB Resolution: 8*8 Temperature measurement ranges: 0~80 Measurement accuracy: ±3.5(Central point, 20~50) Operate temperature : 10~50 Operate humidity: ≤70% Refresh rate: 10Hz FOV: 60°*60° Power port: USB 5V Battery: 1 * lithium battery, 200mAh (included) Item size: 60 * 46.0 * 18mm / 2.4 * 1.8 * 0.7in Item weight: 37g / 1.3ounce Package size: 85 * 60 * 30mm / 3.3 * 2.4 * 1.2in Package weight: 52g / 1.8ounce Packing list: 1 * Simple Infrared Thermal Imager