The 5-in-1 OTDR fiber tester combines OTDR, optical power meter, visual fault locator, optical light source, and event map. Featuring a high-power visual laser source, it quickly locates faults with a single button. Lightweight and portable, it includes a 7.4V/6.6Ah lithium battery for extended standby in field operations.
Features
- Easy-to-use with one-button measurement in multiple modes.
- Real-time measurement for monitoring splicing progress.
- Built-in high-power visual laser source for precise fault location.
- 2 primary USB ports and 1 secondary USB port for PC control and external device connection.
- 5-in-1 OTDR tester with 8GB memory, storing over 80,000 curve sets.
- Data simulation software for processing, report generation, and printing.
Specifications
Model |
T-TMO-350 |
Testing Wavelength |
1310/1550nm |
Dynamic Range |
32/30dB |
Event Dead Zone |
0.8m |
Attenuation Dead Zone |
4m |
Pulse Width |
3ns, 5ns, 10ns, 20ns, 50ns, 100ns, 200ns, 500ns, 1μs, 2μs, 5μs, 10μs, 20μs |
Testing Distance |
500m, 2km, 5km, 10km, 20km, 40km, 80km, 120km, 160km |
Measurement Time |
Use-defined (smart link) ; with real-time measurement function |
Linearity |
≤0.05dB/Db |
Loss Threshold |
0.01dB |
Loss Resolution |
0.001dB |
Distance Resolution |
0.01m |
Sampling Resolution |
Minimum 0.25m |
Sampling Point |
Maximum 128,000 points |
Distance Accuracy |
±(1m+measuring distance×3×10-5+sampling resolution ) |
Internal Visual Source |
10mw, CW/2Hz |
Stable Laser Source |
>-5dBm |
Data Storage |
80000 groups of curve |
Interface |
3 USB port |
Display |
7 inch capacitive touching screen |
Battery |
7.4V/6.6Ah lithium battery, continuous 8-10 hours |
Operating Temperature |
-10℃~+50℃ |
Storage Temperature |
-20℃~+75℃ |
Relative Humidity |
≤90%, non-den |
Dimension |
230×185×70mm/1.5kg |
Accessories |
Main unit, 8.4V power adapter, Lithium battery, FC adapter, USB cord, User guide, CD disk, carrying case |
Application
OTDR (Optical Time Domain Reflectometer) measures fiber attenuation, splice loss, and fault location by analyzing the backward scattered light as it propagates through the fiber. It provides detailed information on the loss distribution along the fiber’s length. This makes the OTDR tester a crucial tool for fiber optic cable construction, maintenance, and monitoring.

Tips: What is a an OTDR?
An OTDR (Optical Time Domain Reflectometer) is a testing instrument used in fiber optic networks to analyze the quality and performance of optical fibers. It works by sending pulses of light into the fiber and measuring the light that is scattered or reflected back. This data helps determine key characteristics of the fiber, including:
- Fiber attenuation (loss of signal strength over distance)
- Splice loss (loss at fiber connections)
- Fault location (identifying breaks, bends, or other issues)
- Loss distribution (how signal loss varies along the length of the fiber)
OTDRs are essential for installation, troubleshooting, and maintaining fiber optic systems, ensuring that networks perform optimally.