Check the listing for details. Lightweight Optical Power Meter High Accuracy Rechargeable Optic Power Meter. Condition: New. Listed at 15.99 USD. Mini optical power meter has compact structure and stable performances. It ensures high measuring accurancy of 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm and 1625nm wavelengths. Combined usage with Optical-Laser-Source, it could accurately measure the loss of fifiber, cable and other passive optical devices. Features: Light weight and mini size for easy carrying. ABS material, comfortable feeling. Highly sensitive detector, fine stability, accurate measurement. Self calibration by user himself. Large rechargeable lithium battery supports continuous work for up long hours. LED lighting function, convenient for dark environment operation. LCD color screen, ultra-low energy consumption, clear display does not hurt the eyes. Automatically save the last tested wavelength when shutting down. 40 sets of data are automatically covered and stored in cycles. USB charging: universal interface, plug and use. Specifications: Model: G1000 Measuring range: G1000: -70+3 Power meter interface: 2.5mm SC/FC/ST Calibration wavelength: 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm Automatic shutdown time: 10min Resolution: 0.01dB Battery: 3.7V, 400mAh Item size: 125 * 34 * 17mm / 4.9 * 1.3 * 0.7in Item weight: 52g / 1.8ounce Package size: 148 * 53 * 35mm / 5.8 * 2.1 * 1.4in Package weight: 120g / 4.2ounce Packing List: 1 * Optical Power Meter More offers, more surprises