1、[OTDR Fiber Optic Tester] The fiber optic tester features 1310 1550nm dual wavelength, 24dB 22dB dynamic range, 10m to 60km test range, suitable for G.652 SM fiber. 2、[Multi Function] Built in OTDR, event map, power meter, light source, VFL, cable length measuring tool, cable tracking tool, and RJ45 sorters, offering comprehensive functionality. 3、[Practical Features] The optic fiber cable tester could help evaluating the construction and maintenance of FTTX and access networks, identifying fiber breaks, measuring cable lengths, and calculating relative light electrical loss. 4、[High Resolution Display] With its 3.5 inch colour LCD screen, the OTDR tester provides a clear and intuitive display that enhances user experience and facilitates detailed analysis. 5、[Long Lasting Battery] Powered by 3.7V 4000mAh lithium battery, the optical time domain reflectometer delivers a stable power supply for reliable and uninterrupted operation.<br> Item Type: Fiber Optic Tester<br> Material: ABS<br> Model: NF 981<br> Wave Length: 1310 1550nm Dual Wavelength<br> Dynamic Range: 24dB 22dB<br> Fiber Type: G.652 SM Fiber<br> Event Blind Zone: 10m<br> Attenuation Blind Zone: 15m<br> Testing Range: 10m to 60km<br> Pulse Width: 5ns to 10us<br> Testing Accuracy: ±(1m+Sampling Interval+0.005%xTesting Distance)<br> Loss Accuracy: ±0.2dB/dB<br> Sampling Points: 16k to 128k<br> Sampling Resolution: 0.05m to 8m<br> Reflection Accuracy: ±3dB<br> Screen: 3.5 Inch Color LCD<br> Data Interface: MicroUSB<br> External Storage: Small Memory Card (Small Memory Card Not Included)<br> Power Supply: 3.7V Lithium Battery x 1(4000mAh) (Built in)<br> Operating Temperature: -10℃ to +50℃<br> Storage Temperature: -40℃ to +70℃<br> Relative Humidity: 0 to 95% Non Condensing<br> 1 x Fiber Optic Tester (Small Memory Card Not Included)<br> 1 x User Manual<br> 1 x SC Connector<br> 1 x USB Cable<br> 1 x Plug