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#1 Source in low voltage wire and cable. Call us today to learn more about special offers.
#1 Source in low voltage wire and cable. Call us today to learn more about special offers.

Trek II OTDR Single Mode 1550nm

Various lead times may apply to this product. Please contact us for more details.

We recommend a pulse suppressor (dead-zone) box with Single Mode OTDRs.


Trek II OTDR Single Mode 1550nm

With an unbeatable combination of a small pocket-sized form factor, a 2.8" high-resolution color LCD display, and some of the lowest pricing in the industry, Trek II single mode OTDRs are the wise choice for cost-conscious buyers who need to perform basic troubleshooting or restoration tasks on single mode optical fiber networks. All this from OTDRs that really are pocket-sized and fair priced, yet have comparable features and specifications to other OTDRs in their class.


  • 2.8" color LCD display automatically rotates based on orientation of OTDR (portrait vs. landscape)
  • Live Mode allows users to expand OTDR display onto larger laptop screen
  • Automatically locates events and places them in an internal event table
  • Full horizontal and vertical pan/zoom function
  • High resolution LCD display flips between portrait and landscape modes automatically
  • User-selectable parameters such as index of refraction test mode, pulse width, and averaging
  • Integrated user help screens
  • LC/UPC connector port
  • USB interface for downloading stored readings
  • Integrated visual fault locator
  • Re-chargeable lithium polymer battery
  • 20 hours of normal usage


Optical Specifications
Output Wavelength 1550nm
Fiber Type Single Mode
Dynamic Range 27dB
Event Dead Zone 2 meters (typical)
Attenuation Dead Zone 5 meters (typical)
Maximum Data Points 64000
Data Point Spacing Up to 64km: 1 meter // Over 64km: 2 meters
Pulse Width 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000 meters
Index of Refraction 1.4000 to 1.6000
Distance Accuracy Up to 64km: 1 + (distance in meters/10000) // Over 64km: 2 + (distance in meters/10000)
Distance Range4 80 miles / 128 kilometers
Number of Stored Traces Maximum trace distance: up to 200 // Minimum trace distance: 3000+
General Specifications
Display Type High-resolution Color LCD
Display Size 2.8" diagonal
Battery Type Lithium Polymer
Battery Life up to 20 hours normal usage
Dimensions 2.87" x 4.42" x 1.25"
Weight 10 ounces (284 g)
Visual Fault Locator Specifications
Output Wavelength 650nm
Output Power 1 mW
Operating Mode CW / Flash

What's In The Box

  • Qty 1 - Trek II OTDR Single Mode 1550nm