Storage Temperature: -30°C~+70°C Material: ABS+Electronic Parts Working Time: >120 hours Dimensions: 130 x 66 x 27 mm/5.1 inches x 2.6 inches x 1 inch Color: Blue Working Temperature: -10°C~+60°C Measurement Range: -70~+10dB Resolution: Linearity 0.1% 100% Brand New and High Quality Non-linearity: 0.01dBm Accuracy: ±3% (-10dBm, 22℃) Detector Type: InGaAs Power: 3 x AAA 1.5V Batteries (Not Included) Calibrated Wavelengths: 850nm/1300nm/1310nm/1490nm/1550nm/1625nm Optical Connector: FC/PC Item Name: OPM&VFL 2 in 1 Meter Auto Power Off: 10 minutes Weight: 98.2G/0.22lb 2 in 1 Fiber Optic Light Meter: This 2 in 1 optical power meter with visual fault locator function can be widely used for installation, operation, and maintenance of fiber optic networks. With its built-in 10mw Visual Fault Locator, this fiber tester could accurately measure the loss of bards, cables, and other passive optical devices. High Precision, High Sensitivity, and High Linearity: Fast and accurate. No warm-up waiting, just plug and play. +/- 3% uncertainty, -50dBm to +26dBm measurement, relative power, calibration function. Six Wavelengths: 850nm/1300nm/1310nm/1490nm/1550nm/1625nm with FC adapter. Covers most needs of CATV CCTV Communication Engineering maintenance. Practical, Compact Design and More Durable: Pocket-sized and lightweight, practical handy size (130 x 66 x 27 mm/5.1 inches * 2.6 inches * 1 inch), easy to use, easy to carry with a large screen and LED backlight; Low power consumption, 3 x AAA 1.5V batteries (not included) provide 120 working hours for continuous operation. Friendly User Interface Design: A distinct result or information display ensures user experience satisfaction, the automatic shutdown function can be selected; The low voltage function display notifies you that the battery is low, the user auto-calibration function helps new users adjust the measurement. Package Includes: 2 in 1 Fiber Light Tester Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color shown on the pictures. 2. Please allow 1-3 cm measuring deviation due to manual measurement.