The All-in-One Fusion Splicer and Integrated OTDR combines two essential tools for fiber optic technicians into a single, user-friendly device. This innovative solution not only enhances your productivity but also ensures accuracy in every splice.
Streamlined Workflow
With its dual functionality, this fusion splicer and OTDR reduces the need to switch between devices, saving you valuable time on the job. Its intuitive interface allows for quick setup and operation, making it ideal for both seasoned professionals and newcomers in the field.
Precision and Reliability
Engineered for optimal performance, the All-in-One Fusion Splicer guarantees consistent splicing quality with minimal loss. The integrated OTDR feature provides real-time testing and diagnostics, allowing you to quickly identify faults and ensure reliable network performance.
Portability and Durability
This compact device is built to withstand the rigors of fieldwork. Lightweight yet sturdy, it easily fits into your toolkit without compromising on performance. Perfect for service providers and contractors who need reliable equipment on the go.
Invest in the All-in-One Fusion Splicer and Integrated OTDR today to enhance your fiber optic installation capabilities. Experience the convenience of having two powerful tools in one, and take your projects to the next level.
GLK-88MT Fusion Splicer with OTDR, OPM & VFL
The GLK-88MT Fusion Splicer is a new-generation all-in-one fibre optic splicing and testing solution designed to reduce the need for carrying multiple separate instruments in the field.
The GLK-88MT combines a fusion splicer, OTDR, Optical Power Meter (OPM) and Visual Fault Locator (VFL) into one compact unit. This integrated design allows fiber optic technicians to perform splicing, fiber testing and fault identification using a single device.
The product is being positioned in launch materials as an industry-first all-in-one solution combining fusion splicing, OTDR, OPM and VFL, making the GLK-88MT a notable new arrival for fibre optic professionals.
New Arrival in UK
The GLK-88MT Fusion Splicer is a New Arrival in UK, bringing an integrated approach to fibre optic installation and testing.
Instead of carrying separate equipment for:
- Fibre fusion splicing
- OTDR testing
- Optical power measurement
- Visual fault locating
the GLK-88MT combines these functions into one field-ready device.
For fibre optic technicians, contractors, ISPs and network installation teams, this can simplify the workflow and reduce the amount of equipment required on site.
World’s 1st All-in-One Fusion Splicer with OTDR, OPM & VFL
The GLK-88MT is marketed in launch materials as an industry-first all-in-one solution combining:
Fusion Splicer + OTDR + OPM + VFL
into a single machine.
This integrated architecture is one of the major highlights of the GLK-88MT Combo OTDR Splicer.
One Device. Multiple Fibre Optic Functions.
With the GLK-88MT, technicians can work with:
Fusion Splicing
Create permanent fibre-to-fibre connections using the integrated fusion splicing system.
OTDR
Test fibre links and identify events, loss and potential faults along the fibre route.
OPM — Optical Power Meter
Measure optical power levels for fibre link testing and troubleshooting.
VFL — Visual Fault Locator
Use visible red light to help identify fibre continuity and locate certain faults.
The combination of these functions makes the GLK-88MT Fusion Splicer particularly useful for field technicians who need both splicing and fibre testing capabilities.
6-Motor Real Core-to-Core Alignment
One of the most important features of the GLK-88MT Fusion Splicer is its 6-motor core alignment system.
The six-motor mechanism provides multi-axis fibre positioning and alignment, helping position the fibre cores accurately before the fusion process.
The GLK-88MT is therefore designed for real core-to-core alignment, rather than relying only on basic cladding alignment.
6-Motor Core Alignment Benefits
- Accurate fibre positioning
- Automatic alignment
- Improved splicing consistency
- Core-to-core alignment
- Suitable for professional fibre installations
- Automatic and manual operating options
The 6-motor core alignment system is one of the key selling points of this professional fiber fusion splicer.
Integrated OTDR Testing
The GLK-88MT Combo OTDR Splicer integrates an OTDR directly into the fusion splicing machine.
An Optical Time Domain Reflectometer (OTDR) can be used to examine fiber links and help identify events such as:
- Fiber breaks
- High-loss points
- Splice issues
- Connectors
- Bends
- Reflections
- End of fibre
- Unexpected events along the fibre route
The available product information specifies 1310nm and 1550nm OTDR live testing with a stated 22 dB specification.plus Live Test
This integrated OTDR functionality allows technicians to perform testing without switching to a separate OTDR device.
Built-in Optical Power Meter — OPM
The GLK-88MT Fusion Splicer also incorporates an Optical Power Meter (OPM).
OPM functionality can be used to measure optical power levels and assist technicians in evaluating fibre link performance.
The published product information lists an OPM measurement range of approximately -50 dBm to +6 dBm.
This makes the integrated OPM useful for fibre optic installation, commissioning, maintenance and troubleshooting tasks.
Built-in VFL — Visual Fault Locator
The GLK-88MT also includes a built-in VFL (Visual Fault Locator).
A VFL uses visible red light to help technicians check fibre continuity and identify certain problems in accessible sections of a fibre link.
The available product information specifies a 10mW VFL.
Having VFL functionality integrated into the same machine means technicians do not necessarily need to carry a separate VFL for basic visual fibre fault checking.
Fast Heating System
The GLK-88MT features a quick heating system designed for efficient fiber splicing workflows.
The product information highlights heating capability of approximately 10 seconds, allowing technicians to complete the splice protection process quickly.
Fast heating can be particularly useful during:
- FTTH installations
- Fibre maintenance
- ISP deployment
- Fibre cable repair
- Data center work
- Outdoor fibre installation
- Telecom network projects
3-Second Boot-Up (Fast Mode)
The GLK-88MT features a claimed 3-second boot-up, allowing technicians to start working quickly after powering on the machine.
For field technicians handling multiple fibre connections throughout the day, faster startup can help reduce unnecessary waiting time.
6200mAh Large-Capacity Battery
The GLK-88MT Fusion Splicer comes with a 6200mAh battery, providing portable operation for field fiber optic work.
A large-capacity battery is particularly useful for technicians working:
- Outdoors
- On towers
- In telecom cabinets
- In fibre distribution areas
- During emergency repairs
- At construction sites
- In locations without convenient AC power
The integrated battery helps make the GLK-88MT a portable fibre splicing and testing solution.
5-Inch HD IPS Capacitive Touchscreen
The machine features a 5-inch HD IPS capacitive touchscreen.
The touchscreen interface provides access to the device’s different functions, including:
- Splice options
- OTDR
- Event map
- OPM
- VFL
- Maintenance
- System settings
- Data storage
The visual interface is designed to make switching between the machine’s different fiber optic functions easier.
Rugged Metal Body
The GLK-88MT features a durable metal body designed for professional field use.
Its rugged construction makes it suitable for demanding environments where technicians need equipment that can be transported between different fibre installation and maintenance locations.
Multi-Functional Fibre Optic Machine
The major advantage of the GLK-88MT Combo OTDR Splicer is its multi-functional design.
Instead of using separate:
- Fusion Splicer
- OTDR
- Optical Power Meter
- Visual Fault Locator
the GLK-88MT brings these functions together into one integrated platform.
This can help fibre technicians simplify their equipment setup and move more efficiently between splicing and testing tasks.
GLK-88MT for Fibre Optic Technicians
The GLK-88MT Fusion Splicer is designed for professionals working with fibre optic networks.
It can be useful for:
- Fibre optic technicians
- ISP tecreicians
- FTTH installers
- Telecom contractors
- Fibre maintenance teams
- Network installation companies
- Data centre technicians
- Fibre optic testing teams
- ODN installation teams
- Broadband network installers
GLK-88MT for FTTH Installation
For FTTH (Fibre to the Home) projects, technicians often need to splice fibre and verify the quality of the installed link.
The GLK-88MT combines these requirements into one device by providing:
Splicing → OTDR Testing → OPM → VFL
This makes the GLK-88MT all-in-one fusion splicer particularly suitable for fibre deployment and maintenance workflows.
GLK-88MT Technical Highlights
| Feature | Specification |
|---|
| Model | GLK-88MT |
| Product Type | Combo OTDR Splicer |
| Fusion Alignment | 6-Motor Core Alignment |
| Splicing | Core-to-Core Alignment |
| OTDR | Integrated |
| OTDR Wavelength | 1310nm / 1550nm / Live Test |
| OTDR Specification | 22 dB stated |
| OPM | Built-in |
| OPM Range | -50 dBm to +26 dBm stated |
| VFL | Built-in |
| VFL Power | 10mW |
| Display | 5-inch HD IPS Capacitive Touchscreen |
| Battery | 6200mAh |
| Boot-up | Approx. 3 seconds stated |
| Heating | Approx. 10 seconds stated |
| Motors | 6 |
| Body | Metal |
| Bluetooth | Remote control support |
| Functions | Splicer / OTDR / OPM / VFL |
Note: Specifications can vary by production revision or manufacturer configuration. UFS should confirm final technical specifications with the supplier before publishing fixed numerical claims such as OTDR range, splice time or measurement accuracy.
Key Features of GLK-88MT
All-in-One Fiber Optic Solution
Fusion splicing, OTDR, OPM and VFL integrated into one machine.
6-Motor Core Alignment
Advanced multi-axis motorized alignment for professional fibre splicing.
Integrated OTDR
Perform fibre link testing without carrying a separate OTDR.
Built-in OPM
Measure optical power levels directly from the machine.
Built-in VFL
Perform basic visual fiber continuity and fault checks.
6200mAh Battery
Designed for portable field operation.
5-Inch Touchscreen
HD IPS capacitive touchscreen for easy operation.
Fast Startup
Approximately 3-second boot-up is highlighted in the product material.
Quick Heating
Heating time of approximately 10 seconds is highlighted in the supplied product material.
Bluetooth Remote Control
Bluetooth functionality is included among the listed product features.
Rugged Metal Construction
Designed for professional fibre optic field environments.
Why Choose GLK-88MT Fusion Splicer?
The GLK-88MT Fusion Splicer is designed around a simple idea: one machine for multiple fibre optic tasks.
For a technician, this can mean less equipment to carry and fewer device changes during a firer installation or repair.
Its combination of 6-motor core alignment, fusion splicing, OTDR, OPM and VFL makes it a versatile tool for modern fibre optic network deployment and maintenance.
Published 13th Oct 2026 by Roger Miles, Satsearch.co.uk
Recommended to read this section before using the OTDR
(Optical Time Domain Reflectometer) on a live fibre system.
Question: - Can I use a OTDR (Optical Time Domain Reflectometer) on a live Fibre
System?
Yes, you can use an OTDR (Optical Time Domain Reflectometer) on a live fibre system,
but only if the OTDR is designed for live-fibre testing and the correct precautions are
taken.
The three main considerations
1. Standard OTDR
A conventional OTDR sends pulses of light down the fibre to measure losses, connections,
breaks and fibre length. If the live system is transmitting light at the same wavelength, the
existing signal can interfere with the measurement and potentially damage the OTDR
receiver.
2. Live-fibre OTDR
Some OTDRs support in-service testing using a dedicated wavelength, commonly 1625 nm
or 1650 nm, with appropriate filtering to reject the live traffic signal. This allows testing
without interrupting customer services, provided the system and components support it.
3. Wavelength filters and network compatibility
A suitable filter may be required to prevent the test signal from interfering with live traffic.
You must also check that the wavelength is compatible with the network, particularly if it
uses CWDM, DWDM or other wavelength-sensitive equipment.
Important safety warning
• Never look directly into a fibre connector, even if no light is visible.
• Check the OTDR's live-fibre specifications before connecting it to an active circuit.
• Never assume a standard OTDR can safely accept live optical power; the incoming
signal may damage its detector.
• Check with the network operator before transmitting test pulses onto a live network.
Published 13th Oct 2026 by Roger Miles, Satsearch.co.uk
What about the GLK-88MT?
Since you're interested in the GLK-88MT fusion splicer with integrated OTDR, I would
check its specifications before purchase / using its OTDR on an active fibre. Having an
integrated OTDR does not automatically mean it supports live-fibre testing. See the spec
sheet of the different models available.
Can I ask one question? Are you looking to test:
• A. A live broadband fibre carrying customer internet traffic.
• B. A live fibre carrying a telecom or DWDM signal.
• C. A fibre that is connected to equipment but is not currently carrying traffic
I will explain the safest testing method and what type of OTDR you need.
Let's cover all three situations, because the important difference is whether the fibre is
carrying a live optical signal and whether your OTDR can safely test it.
The key rule is you can test some live fibre systems without interrupting service, but you
must use an OTDR and test method suitable for that particular network. A standard OTDR is
not automatically suitable for live-fibre testing.
A. Live broadband fibre carrying customer internet traffic.
This could be a fibre-to-the-home (FTTH) network carrying internet traffic to customers.
• Can you test it? Yes, with a suitable live-fibre testing arrangement.
• Typical approach: Use an OTDR with an appropriate filtered live-testing wavelength,
often 1625 nm or 1650 nm, where supported by the network.
• Important: Passive optical splitters divide the signal and introduce loss, making traces
more complicated. The test wavelength must also be compatible with the network's
optical components.
• Main risk: An unsuitable test wavelength or connection could disrupt service or
damage test equipment.
For routine broadband fault-finding, an optical power meter and light source may be
appropriate for loss testing, while an OTDR helps locate faults along the fibre.
B. Live telecom fibre or DWDM system.
DWDM (Dense Wavelength Division Multiplexing) systems carry multiple optical channels
along one fibre, with each channel using a different wavelength.
• Can you test it? Yes, but the test method must be compatible with the transmission
system.
• Typical approach: Use a network-approved in-service test wavelength and suitable
filtering or a designated test port.
• Important: Do not assume that 1625 nm or 1650 nm is safe for every DWDM system.
Check the system's wavelength plan, filters and equipment specifications.
Published 13th Oct 2026 by Roger Miles, Satsearch.co.uk
• Main risk: Test light can interfere with transmission channels, and live optical power
can affect the OTDR receiver.
For DWDM networks, I would always check with the network operator before injecting any
OTDR test signal.
C. Fibre connected to equipment but not carrying traffic.
This situation can be simpler but connected does not necessarily mean inactive.
• Can you test it? Usually, if the fibre is genuinely dark and the test is authorised.
• Typical approach: Use a conventional OTDR at 1310 nm and/or 1550 nm for singlemode fibre, depending on the application.
• Important: A link with no customer data may still have active optical transmitters or
monitoring signals.
• Main risk: Accidentally testing a fibre that is still illuminated by active equipment.
Confirm that the fibre is safe to test before connecting the OTDR. Never assume that an
absence of internet traffic means the fibre has no optical signal.
What this means for the GLK-88MT
I found product information for the GLK-88MT Fusion Splicer with Integrated OTDR. The
published specification states 1310/1550 nm OTDR, “Live Test 22 dB”.
That wording needs clarification before you use it on a live network.
Questions I would put to the manufacturer
1. Does “Live Test 22 dB” mean testing a fibre carrying live optical traffic without
interrupting service?
2. Does the OTDR have an internal optical filter or a separate live-fibre test port?
3. What is the maximum permissible incoming optical power at the OTDR port?
4. Is live testing supported on GPON/XGS-PON and DWDM systems, or only on
specific fibre configurations?
A conventional live-fibre OTDR commonly uses a dedicated, filtered 1625 nm or 1650 nm
test wavelength. The GLK-88MT's published 1310/1550 nm specification is therefore worth
verifying carefully.
See below for the maximum optical power levels that each GLK-88MT mode will give you
with “Live-fibre Test” option.
My recommendation is to obtain confirmation from the manufacturer / Dealer before
purchase / using the GLK-88MT as suitable for your live-fibre applications.
