Feature:1. FOUR FUNCTIONS: This is a 4 in 1 multi functional optical time domain reflectometer(OTDR), including OTDR 1310 1550nm and 22 20dB 60km 6.3mi test distance, Visual fault locator(VFL) 650nm and 10km 6.3mi, Optical fiber power meter(OPM) 800~1650nm and 50~+26dBm, and light source(OLS) 1310 1550nm, are the most cost effective OTDR2. CLEAR DISPLAY: The 4 in 1 OTDR uses a large 3.97in IPS touch screen with 800x480 pixels, which is clearly readable in outdoor sunlight, very practical3. FLEXIBLE AND EDITABLE: OTDR fiber optic tester support data saving Sor format, keyboard input, can edit save file name and line number, more convenient4. PORTABLE COMPLETE SET: OTDR test distance up to 60km, equipped with lanyard, power cord, storage bag, convenient for you to carry and use at outdoors5. EXCELLENT PERFORMANCE: Optical time domain reflectometer is made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stabilitySpecification:Item Type: Optical Time Domain ReflectometerOTDR Part: Wavelength(nm): 1310 or 1550nmDynamic Range: 24 or 22dBTest With Light: Not supportedMeasuring Distance: 0-60kmFiber Type: 9/125um SMInterface Type: FC PC; SC PCLaser Peak: >=30mWDisplay Units: Meters, feet, milesReflection Event Blind Area: 2mDepletion Event Blind Zone: 12mMeasurement Accuracy(reflection event): About (1m+2 x 10(-4) x distance)Number of Test Records Saved: 200Visual Fault Locator(red light): Wavelength(nm): 650nmOutput Power: 10mWOutput Mode: CW, 1Hz, 2HzTest Fiber Type: SM, MMOptical Power Meter: Measuring Range: -70 ~ +10dBm; -50 to +26dBmWavelength Range(nm): 800 ~ 1650Test Wavelength(nm): 850, 1300, 1310, 1490, 1550, 1625Detector Type: For InGaAsMeasurement Accuracy: <3%(-10dBm, 22)Resolution: Linearity: 0.1%, Nonlinearity: 0.01dBmAdapter Type: Replaceable FC or SC(ST optional)Light Source: Laser Type: FP-LDOutput Wavelength(nm): 1310 or 1550nmInterface Type: FC PC; SC PC (ST PC as optional)Output Power: -5dBmOutput Stability(dBm): 0.04 at 20 at 15minOutput Frequency: CW, 270Hz, 1KHz, 2KHzTest Fiber Type: SMOthers: LCD: 3.97in, 800 x 480 pixels, IPS, touch screenBattery: 1 x 7.4V lithium ion battery 4400mAH >5000 testsTemperature: Test Temperature: -5 ~ 50, Storage Temperature: -10 ~ 60Humidity: 0 ~ 85%(non condensing).Package List:1 x Reflectometer1 x User Manual1 x Lanyard1 x Power Cord1 x Storage Bag