OTDR Tester 3.5 Inch LCD Screen Optical Time Domain Reflectometer Optical Power Meter RJ45 Tester 100‑240V US Plug Item Type: OTDR Tester Model: QX55-S Wavelength (nm): Single Mode 1310/1550 Dynamic Range (dB): 32/30 Fiber Optic Interface: 1 Applicable Optical Fiber: SM (ITU-T G.652) Range (km): 0.5, 1, 2, 5, 10, 20, 35, 50, 75, 100, 150, 200 Pulse Width (ns): 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 10000, 20000 Event Blind Spot x1 (m): 1 Attenuation Blind Spot x2 (m): 3.5 Sampling Points: Maximum 80000 Sample Resolution: Minimum 0.04m Distance Measurement Accuracy: ±(0.75m + measurement distance x 2 x 10 - 5 + sampling point resolution) Loss Accuracy: ±0.03dB Reflection Accuracy: ±2dB Optical Power Meter Module (built in Function): Yes OPM Wavelength: 800-1650nm Measurement Range: -70-6dBm Measurement Accuracy: <(±0.2dB0r±5%) Display Resolution: 0.01dB Built in Fiber Optic Interface: SC UPC, 2.5mm universal connector Stable Light Source Module (Built in Function): Yes SLS Wavelength: 1310/1550nm Output Power: >-10dBm Modulation Frequency: CW, 270Hz, 1kHz, 2kHz Laser Security Level: Class 1M or Class 1 Built in Fiber Optic Interface: OTDR Optical Port Red Light Source Module (built in Function): Yes VFL Wavelength (nm): 650 Output Power: 10mW Modulation Mode: CW, CHOP (2 Hz) Laser Security Level: Class 3R Built in Fiber Optic Interface: 2.5mm universal connector, FC SC ST FIP Magnification: 250X Resolution: ≥1.0um Communication Interface: USB2.0 Fiber Optic Interface: FC UPC, SC UPC, ST UPC CMOS Size: 1/3 Inch Network Testing Module (Built in Function): Yes RJ45 Applicable Network Cables: CAT5, CAT6 Line Length: 300m Maximum Audio Transmission Distance: 300m Display Screen: 3.5 Inch Color LCD Screen (resolution: 640x480) Interface: Charging interface x 1, USB 2.0 x 1, RJ45 x 2 Working Temperature: -10-50℃ (0-40℃ for use with power supply, 0-35℃ for battery charging) Storage Temperature: -20-60℃ Altitude: 4000m Humidity: 0-90%RH (at 20%-90% 739874 AC adapter, frost free) Battery: 1 x Lithium Battery (3000mAh) (built in battery) LED Light: Light strength >15000mcd Data Storage: Memory: >1000 test curves External Storage: USB