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    Single Mode Mini OTDR Tester

    Mini single mode OTDR fiber tester wavelength 1550nm, dynamic range 24dB, support fully automatic OTDR, expert OTDR, event map, OPM, VFL, power-adjustable and stable OLS, optical loss test, RJ45 cable length/sequence/tracking and other functions. Mini OTDR fiber tester with high-capacity lithium battery, up to 12 hours of use, ideal for long outdoor work.
    SKU: ATO-OTDR-4000D
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Sell professional fiber optic tester, wavelength 1550nm, dynamic range 24dB, mini otdr fiber optic tester provides users with high precision fiber optic test curve data, users can more intuitively understand and analyze the status and failure of the entire fiber optic link.


    Model ATO-TM4000D
    Wavelength 1550nm
    Dynamic Range 24dB
    Test with Light Not Supported
    Display 4.3-inch multi-touch capacitive screen
    Output Power 10mW
    Operating Mode CW/1Hz/2Hz
    Fiber Type G.652 single-mode fiber
    Event Blind Zone 2.5m
    Attenuation Blind Area 8m
    Measurement Range 500m, 1km, 2km, 4km, 8km, 16km, 32km, 64km, 100km
    Pulse Width 3ns~20us
    Distance Measurement Accuracy ±( 1m+sampling interval+0.005 % x test distance)
    Linearity ±0.05dB/dB
    Sampling Points 16k~128k
    Sampling Resolution 0.05m~8m
    Reflection Accuracy ±3dB
    Data Storage 8G
    Laser Safety Level Class2 level
    File Format SOR standard file format
    Optical Connector FC/UPC (interchangeable SC, ST); optional SC/APC 
    Data Interface Type-C
    Extended External Storage TF card
    Power Supply Li-polymer battery: 3.7V, 4000mAh
    Power Adapter 5VDC, 2A
    Battery Life Standby>20 hours, measurement>12 hours
    Weight 500g
    Working Temperature -10℃~+55℃
    Storage Temperature -20℃~+80℃


    • Support 12 functions: Automatic OTDR, Expert OTDR, Event Map, Optical Power Meter, Visible Red Light, Adjustable Light Source, Optical Loss Test, RJ45 Network Cable Pairing, RJ45 Network Cable Ranging, RJ45 network cable line finding, Flashlight, Endface Inspection.
    • Single mode functional OTDR tester equipped with a high-performance chip, performance + energy efficiency double enhancements, smooth operation, accurate measurement, and intelligent battery management makes the battery life also greatly enhanced.
    • Large-capacity polymer battery, stable current, long-lasting battery life, safe to use, standby longer than 20 hours.
    • 8G storage capacity, support auto-save, SOR format, PDF format, can store 200,000 items.




    Tips: How to choose the wavelength of the fiber optic tester?

    The 1550 wavelength test distance is longer, 1550nm is more sensitive to bending than 1310nm fiber, 1550nm has less attenuation per unit length than 1310nm, and 1310nm has higher fusion or splice loss measured than 1550nm. In actual fiber optic cable maintenance work, the two wavelengths are generally tested and compared. For both the positive gain phenomenon and over spacing line, two-way test analysis and calculation are performed to obtain good test conclusions.

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