CT582 10G PON Power Meter XGS Optical Tester EPON GPON 10GEPON XGPON Support 1270nm 1310nm 1490nm 1577nm wavelength WholesaleBuy Directly From AliElectro Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.