Auto shut-off after 10 minutes of inactivity to save power. RJ45 Cable Tester & LED Flashlight RJ45 Network Cable Tester. Supports 850nm, 980nm, 1270nm, 1300nm, 1310nm, 1490nm, 1550nm, 1577nm, 1625nm, 1650nm – suitable for singlemode and multimode fiber testing.
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