Portable FTTH Fiber Optical Power Meter With LED Light Network Cable Tester DESCRIPTION EEE0078578 Features: 1. Support lighting 2. Support automatic shutdown 3. Support backlight switch 4. Support wavelength memory function 6. Support user calibration 7. Support simultaneous display of linear mW and nonlinear indicators dBm 8. Support SCFCST interface 9. Support external power supplies such as power banks and computers. 10. Support simultaneous linear (mW) and nonlinear (dBm) display 11. Change shift, work 72 hours (optional) Specification: Test: -70 to +6dbm Wavelength: 800~1700nm Standard wavelength: 850nm, 980nm, 1300nm, 1310nm, 1490nm, 1550nm, 1625nm, 1650nm Uncertainty: 5% 650m red light source (optional): 1mw, 10mw, 20mw, 30mw, 50mw Display resolution: linear display 0.1%, logarithmic display 0.01dBm Battery: 2*AAA battery (not included) Package Contents: 1 * Optical fiber power meter 1 * User Manual 1 * rope notes: 1. Due to manual measurement, please allow an error of 1-3mm. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the item. Thanks! POLICES Shipping Payment WARRANTY We only ship to confirmed Order addresses. Please comfirm that your Order address is in line with your shipping address. Please kindly note that the c ombined shipping is not provided because the shipping fee is calculated by weight. Also, the each additional item means exactly the the same color and size. It takes about 7 -15 working days to US; about 10-30 working days to other countries. Transit time may be a little delayed because of the bad weather and customs inspection . If you do not receive your item within 30 working days since payment finished, please contact us immediately for further assistance. Payment must be completed within 5 days. If you have any problems about payment, please contact us via We strive for 100% customer satisfaction! Positive Feedback is very important to us. If you have any questions, p lease feel free to contact us via "Ask seller a question" . We will reply your email within 24 working hours.