Description High Accuracy G10 Optical Power Meter, Rechargeable Optical Power Detection Instrument, Light Decay Tester Features: 1. Compact and Portable: Being so mini and lightweight, this product does not take up much space and can be easily removed. 2. Durable Material: This product is made of high quality material, which is durable, long service life, firm and stable in use. 3. Short press the Enter key, 7 kinds of test wavelength cycle switching, meet various test requirements. 4. High-definition display: no fear of darkness during the day, meets the needs of all kinds of working hours. 5. Concave convex design, tactile feedback. Humanized design to improve work efficiency. High performance and high reliability, durable replacement for the old or damaged one, no need to worry about not finding the right accessories anymore. Specifications: Measuring range: -50 + 26 Quiescent current: 18ua Endurance: 20h Charging current: 500mA Auto-off time: 10 minutes Battery capacity: 400mah Operating current: 25mA Charging voltage: 5V Charging time: 3H Power supply: built-in lithium battery and USB port Size: 34*17*125mm Color: black + orange Package Included: 1 * Optical Power Meter