Uxcell Fiber Optical Power Meter With Light Source Sc Fc Connector, 70 To 10 Dbm Product Details Quick and Accurate. No waiting for preheating, just plug and play. It has precise test accuracy, optional switching display and automatic power off function. +/- 5%uncertainty, 3 to 70 dBm measurement, relative power calculation, calibration function. Portable and Durable. Sensitive chip and sturdy inner structure for long service life. Low battery consumption, 48 working hours for continuous operation.(3 x AA batteries included) Clear Blue Screen. Detail means profession, a distinct result or information display ensures the satisfaction of user experience. Dust-resistant design keeps connectors clean for long periods of time. 6 Wavelength and Light Source. 850/1300/1310/1490/1550/1625 nm+5KM red light locator+SC/FC/ST Adapter. Covering most needs of CCTV Communication Engineering maintenance. Application. A reliable fiber optic power equipment is quite important in the of high bandwidth. This hand held optic meter could help to inspect cable's capabilities, calculate relative power loss, locate the fault and troubleshooting. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.