speedwolf Mini Portable FTTH Fiber Optical Power Meter (-50dBm~+26dBm),Handlend Optic Fiber Cable Tester Tool with FC Adapter for CCTV CATV Engineering Maintenance

* High Precision,High Sensitivity and High linearity: --Quick and Accurate. No waiting for preheating, just plug and play. +/- 3%uncertainty, -50 to +26 dBm measurement, relative power calculation, calibration function. * Six Wavelength: —850nm,1300nm,1310nm,1490nm,1550nm,1625nm with FC Adapter. Covering most needs of CATV CCTV Communication Engineering maintenance. * Practical, Compact Design and More durable: -- Pocket size and light weight, Convenient Handy Size(130x66x27mm/5.1*2.6*1inch), easy to use; easy to bring with large screen and LED backlight; Low battery consumption,3XAAA dry battery provide 50-200 working hours for continuous operation. * Friendly user interface Design: --A distinct result or information display ensures the satisfaction of user experience;The automatic shutdown function can be chosen; low voltage function display notifies you the battery is low; the user auto-calibration function will help the new users to adjust the measurement. * 100% SATISFIED and Worry-Free WARRANTY: --If...