【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 you are not happy with your buying experience, simply contact us and tell us what we can do to solve the problem! If the product fails to meet your expectations or is not as described, 60-day money-back guarantee, 5 years warranty and Lifetime Friendly Customer Service