NOYAFA NF-908S Series Optical Power Meter with Visual Fault Locator and Network Cable Tester - Wave: 850 980 1310 1490 1550 1625nm, Measuring Range: -60 8dBm, Accuracy: 850 980nm 0.5dB, CONT: Yes, REF: Yes, LED Lamp: Yes, Timing Shutdown: 30 mins, Rechargeable: Yes, Lithium Battery: 3.7v 700 mAh Više informacija na linku