JW3302S 3.5 Inch Color Screen LCD Optical Time Domain Reflectometer Tester with 8 FunctionsUS Plug 100-240V Condition: Item Type: Optical Fiber Tester Material: ABS Model: JW3302S Wavelength: 1310nm/1550nm±20nm Fiber Type: G.652 fiber Dynamic Range: 24dB/22dB Event Blind Zone: 3 meter / 9.8ft ATT Blind Zone: 8m / 26.2ft Test Range: 500m~60km Pulse Width: 3ns~10us Distance Measurement Accuracy: ±(1m + sampling interval + 0.005% x test distance) Loss Accuracy: ±0.2dB/dB Sampling Point: 16k~128k Sampling Resolution: 0.05m~8m Reflection Accuracy: ±3dB Internal Data Storage: ≥600; External: Memory Card (not included) Laser Safety Level: II File Format: SOR Standard File Format Connector: For SC/FC OPM: Wavelength Range: 800nm~1700nm Interface Type: Universal Connector for FC/SC/ST Test Range: -50dBm~+26dBm Uncertainty: ±5% Frequency Identification: CW/270/330/1k/2kHz Calibration Wavelength: 850/980/1300/1310/1490/1550/1625/1650nm LS: LD Type: FP-LD Output Wavelength: 1550nm±20nm 1310nm/1550nm±20nm Output Power: ≥-5dBm Modulation: 270/330/1k/2kHz Frequency Stability: CW, ±0.5dB / 15min (test after 15min of preheating) Connector: For SC/FC VFL: Working Wavelength: 650nm±20nm Output Power: ≥10mW Mode: CW/1Hz/2Hz Connector: For SC/FC RJ45 Cable Length Measurement: Test Range: 300m / 984.3ft Other Parameters: Display: 3.5-inch Color LCD Data Interface: Micro USB External Storage: Memory Card (Not Included) Power Supply: Lithium Battery: 3.7V, 4000mAh, Power Adapter: 5VDC, 2A Battery Life: Standby>20h; Measurement Time>12h Product Size: Approx. 173 x 82 x 37 mm / 6.8 x 3.2 x 1.5 in Weight: Approx. 743g / 26.2oz