Feature: Built-in high sensitivity sensor, fast measurement speed and high precision. With 3.7V lithium battery, the theoretical working time can reach 15 hours. The battery has short circuit, leakage, overload protection, and effectively protect the safety of the product. With a low battery reminder, no operation within 10 minutes can automatically shut down, do not worry about sudden power. Support three different units display: Lb, Kg, N, one-button switching, easy to operate. Large LCD display, reading data is clearer and more convenient. Specification: Model: SF-20 Plug type: US Plug; EU Plug(Optional) Measuring range: 20N / 2kg /4.5b Load division value: 0.01N /0.001KG /0.001Lb Accuracy: 0.5% Sensor: sensor inside Input: AC 100-240V Output: DC 5V 1000mA Relative humidity: 15%~80% RH Working environment: no corrosive around Unit display: Lb, Kg, N Battery: 3.7V lithium battery(include) Package list: 1 * Digital Force Gauge 1 * RS232 Data line 1 * Disc 1 * Power Adapter 1 * Inspection Certificate 1 * Instruction Manual 1 * Certificate 1 * Desiccant 1 * Hook Assembly 1 * Point Push Connector 1 * Flat Push Connector 1 * V Female Connector 1 * V Male Connector 1 * Extended Rod 1 * Screw (Bag) Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. Please kindly make a note if you need any plug adapter.