Mini OTDR NK2600 NK2800 5-IN-1 Active Fiber 1550nm Fiber Optic Reflectometer and VFL OLS OPM EventMap 20dB 60/80Km

5 in 1 FTTH Mini OTDR integrated tester Active fiberDynamic Range: 20dBTest Range:100m~80kmWavelength: 1550（±20nm）OTDR/OLS Connector: SC UPC/APCPulse Width: 5ns~20μsMeasurement Mode: Real time, average, automaticAttenuation Dead Zone: 10mEvent Dead Zone: ＜2.5mSampling Point: 20000OPM: +26~-50dBm, 850/1300/1310/1490/1550/1625/1650nm, 2.5mm universal connectorVFL: 10mW, 2.5mm universal connectorLCD: 3.5-inch high-definition touch screenType-C x1Self-calibration Function: SupportWorking Temperature: 0℃~50℃Storage Temperature: -20℃~70℃Relative Humidity: ＜90%Size(HWD): 126mm80mm37mmWeight: 200g------------------------------------------------------------------------------------------------------------------------------------------------Selection guideBudget-conscious, routine broadband install/maintenance → NK2800 covers most breakpoint and connector-loss needs.Heavy live PON troubleshooting, frequent micro-bend/weak-reflection cases, or need clean SOR reports for clients → NK2800S (better event detection + live-fiber immunity).Note: NK2800S is not a different optical engine — it adds algorithm + isolation-circuit optimization, not more dynamic range (still 20 dB / 80 km). It targets access networks (FTTH), not long-haul trunk lines.