GAOTek OTDR 110, Bidirectional Testing


This OTDR with Bidirectional Testing is used to measure the parameters of optical fibers and easily locates the accurate positioning of event and fault points.

  • Clear





GAOTek OTDR with Bidirectional Testing is used to measure the parameters of optical fibers and cables, such as length, loss, connection quality and it can easily locate the accurate positioning of event points and fault points. This handheld OTDR belongs to the new generation of intelligent optical measuring instruments designed for the optical fiber communication system testing. This instrument can be widely used in the construction, maintenance testing and emergency repair of the optical fiber communication systems as well as the research, production and production measurement of optical fibers and cables.


Key Features

  • Bidirectional testing function
  • Configuration of 650 nm visible light source
  • Unique hotkey design with key operation integrated hotkey function, fast positioning and analysis of events
  • Short event blind zone to test 16.40 ft (5 m) fiber jumper easily;
  • Multiple kinds of test modes such as automatic test, manual test and blind zone test
  • Light detection and alarm are provided in the line, to avoid signal light from damaging the instrument in the tested optical fiber
  • Built-in high-power visual red light fault positioning function
  • Simple operating interface with shortcut key operation which is easy to use;
  • Dual operation of touch screen and keys
  • Quick start of < 5 seconds
  • USB/RS-232 data interface
  • 1000 test records storage
  • Optimization design of power supply:Built-in NiMH rechargeable battery supports 8 hours of measurement
  • Multiple languages supported such as CN/EN/DE/FR/RU/ES/PT/KR/VN
  • CE, FCC, FDA certificates
  • Special protection design of shell makes it durable and able to work under bad environment
  • Dust-shock proof 6.56 ft (2 m) drop test

Technical Specifications

Models GAO-OTDR-110-A GAO-OTDR-110-B
Dynamic Range 32 dB/32 dB 30 dB/28 dB
Fiber  Type Single Mode Fiber
Wavelength 1310 nm/1550 nm (±20 nm)
Event blind zone 4.92 ft (1.5 m)
Attenuation blind zone 32.8 ft (10 m)
Display  Type 3.5 inch, color LCD, touch screen operation
Emitter  Type LD
Connector  Type FC/UPC (Interchangeable SC , ST)
Test range 1640.42 Ft (500 m), 0.62 mi (1 km), 1.24 mi (2 km), 2.48 mi (4 km), 4.97 mi (8 km), 9.94 mi (16 km), 19.88 mi (32 km), 39.76 mi (64 km), 79.53 mi (128 km)
Pulse width 10 ns, 30 ns, 50 ns, 100 ns, 275 ns, 500 ns, 1000 ns, 5000 ns, 10000 ns
Measurement  Time 15 s, 30 s, 1 min, 2 min, 3 min
Attenuation zone 39.37 ft (12 m) 59.05 ft (18 m)
Event dead zone 8.20 ft (2.5 m) 16.40 ft (5 m)
Distance Measurement Accuracy ±( 3.28 ft (1 m) + 5×10-5× measurement distance + sample space)
Attenuation Detect Accuracy ±0.05 dB/ dB
Reflection Detect Accuracy ±4 dB
Data  storage >1000 test curves
Data  transmission RS-232/USB
VFL output power  ≥-3 dBm
Power Supply AC / DC adapter:

AC: 100 V ~ 240 V (1.5 A), 50 Hz/ 60 Hz

DC: 18 V to 20 V (2 A) Internal lithium-ion battery pack: 7.4 V, 4400 mAh

Battery operation time ≥ 10 hours
Operating Temperature 23 °F ~ 122 °F (-5 ℃ ~ 50 ℃)
Storage Temperature -4 °F ~158 °F (-20 ℃  ~ 70 ℃)
Relative Humidity 0 % ~ 95 % (no-condensing)
Volume 8.18 in x 4.33 in x 2.20 in (208 mm × 110 mm × 56 mm)
Weight ≤ 2.20 lbs (1 kg)

Additional Information

Live Optical Signal Check Function

To have live Optical Signal Check Function, before a test pulse check test for any of the optical fiber live communication optical signals and display the results. It can effectively protect test instrument and communications equipment.

Complete Software Support

  • Single page, single tracing line or single page more tracing line can be chosen from the print mode
  • Batch change and batch print function
  • Waveform difference contrast function
  • Multiple tracing lines can be opened in the same window at the same time. The differences between the tracing lines in the same window display are more easily compared such as optical fiber aging caused by the reasons changing parameters.

Applications Of the Instrument

  • Maintenance in Telecom
  • CATV Maintenance
  • Fiber Optic Lab Testing
  • Other Fiber Optic Measurements

Standard Accessories

  • GAOTek OTDR Instrument
  • FC/PC connector
  • NiMH battery,
  • Trace Manager software CD
  • Data cable (USB/RS-232)
  • AC adaptor
  • Soft carrying case
  • Warranty card
  • CE Certificate/ Certificate of calibration
  • Quick reference guide.

Additional information


GAO-OTDR-110-A (1310/1550nm; 32/32dB), GAO-OTDR-110-B (1310/1550nm; 30/28dB)

Content missing

Learn About New Products, Deals & Specials

Subscribe To Our Monthly Newsletter

Stay up to date with new products and sale products on all our test equipment.