Features Good Matching: Supports FC SC interface adapter, also has 2pcs SC for APC coupler and USB interface for connection. Smart Testing: The optic fibre power meter can test 3 kinds of wavelength at the same time, 1310nm, 1490nm and 1550nm. Calibration Functions: Also enables auto calibration, user calibration and threshold setting supported for easier operation. Easy Carrying: Designed to have a compact size and a light weight as well, both the storage and carrying are very easy. Practical Use: Comes with various functions, such as data storage, automatic shutdown, backlight selection and so on. Specification: Item Type: Optical Fiber Power Meter Model: AUA-320A Material: ABS Display: Colour LCD Screen Detector Type: InGaAs Fiber Type: SM9, 125μm Data Storage: 10 Set Data Interface: Micro USB Power Supply: 3 x AA batteries are required, and can also be used with an external power supply through the USB 5V port, not rechargeable. Shipped without battery. Simultaneous Test Wavelength: 1310nm, 1490nm, 1550nm. Testable Connector: SC FC connector, SC for APC to FC for APC jumper and SC for APC coupler are provided.  Package List: 1 x Optical Fiber Power Meter1 x Storage Bag1 x Lanyard1 x User Manual2 x SC Adapter (Installed on the Meter)2 x FC Adapter  Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 1 x Optical Fiber Power Meter 1 x Storage Bag 1 x Lanyard 1 x User Manual 2 x SC Adapter (Installed on the Meter) 2 x FC Adapter