MN3 OTDR Fiber Tester — SM 1310nm/1550nm, 28/26dB High-Precision Optical Time Domain Reflectometer

The MN3 OTDR is a compact, multi-function instrument built for precise single-mode fiber troubleshooting and qualification. It supports wavelengths of 1310nm/1550nm and provides a dynamic range of 28/26dB. Measurement span covers 5-100km (Theoretical state), making it suitable for short and long haul fiber runs. Key performance figures: event dead zone 1.5m and attenuation dead zone 8m, with reflection measurement accuracy of ±5dB. The unit saves test results locally (Data Storage ≥1000 Test Curves) and presents data on a 3.5 inch color touch screen for clear, easy operation. Battery life is rated at Battery Working Time ≥10h, enabling extended field use.