

Mini OTDR K-150
A pocket OTDR for access and FTTX lines — 1310/1550 nm up to 32/30 dB, one-key measurement, and an event table that reads the line for you.
Typical work: Access network and FTTX installation and maintenance; LAN and campus fiber plant testing; CATV and PON optical network work; Private fiber networks — a first-line fault finder for every crew van.
Get a Quote WhatsApp UsNeutral stock in small lots, or private label made to your requirements. Prices on request — EXW factory pricing.
K-150 key features
- Three builds — 24/22, 28/26 and 32/30 dB dynamic range at 1310/1550 nm: pick the reach your access network needs, nothing more
- One-key measurement with intelligent trace scanning: the tester analyses the trace itself and lists every event — location, loss, reflectance — in a plain table
- Real-time mode for fast installation sweeps, accurate mode for maintenance records, and re-analysis with your own thresholds when the first pass is not the last word
- Live-signal detection watches for traffic light on the fiber and protects the detector before it can be damaged
- A separate top port for the built-in 650 nm visual fault locator — near-end breaks and bad connectors glow red, found in seconds
K-150 specifications
| Wavelengths | 1310/1550 nm (±20 nm) |
|---|---|
| Dynamic range | 24/22, 28/26 or 32/30 dB, by build — see the model table |
| Distance range | 0.5 to 120 km or 0.5 to 150 km, by build |
| Event dead zone | 2 m |
| Attenuation dead zone | 10 m |
| Pulse widths | 10 ns to 20 µs |
| Distance accuracy | ±(1 m + sampling resolution + distance × 0.005%) |
| Linearity | ±0.05 dB/dB |
| Fiber type | Single-mode |
| Display | 3.5-inch LCD, keypad operation |
| Optical connector | FC / SC / ST universal |
| Visual fault locator | Built-in, 650 nm, on its own top port |
| Storage | 1,000 test results |
| Battery | NiMH smart-charge battery, >10 h continuous working |
| Working temperature | -10 to +45 °C |
| Dimensions | 230 × 120 × 60 mm |
| Weight | 0.9 kg |
How It Works — a scan first, a trace when you need it
Most access-network checks do not need a research-grade OTDR session; they need an answer: where is the fault, and how far. The K-150 is built around that. One key launches the pulse train, and the intelligent scan module turns the returning trace into an event table — each connector, splice and break with its distance and loss — readable by a line maintainer without OTDR training. The full trace is always there behind the table, zoomable on the keypad, ready to re-analyse with different thresholds.
The rest of the design is field sense: a 3.5-inch screen and real keys that work with gloves and in sunlight, a battery past ten hours, live-signal detection so an in-service fiber cannot hurt the detector, and PC software that manages, prints and batch-processes the day's traces into reports. It is the OTDR that lives in the van, not the lab.
Choose your K-150 model
One platform, several builds. Pick the wavelength set and dynamic range for your network, and quote the model code with your inquiry — we confirm the build and lead time with your quote.
| Model | Wavelengths | Fiber | Dynamic range | VFL |
|---|---|---|---|---|
| K-150-S1 | 1310/1550 nm | Single-mode | 24/22 dB | Built-in |
| K-150-S2 | 1310/1550 nm | Single-mode | 28/26 dB | Built-in |
| K-150-S3 | 1310/1550 nm | Single-mode | 32/30 dB | Built-in |
Where the K-150 works
Access network and FTTX installation and maintenance
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
LAN and campus fiber plant testing
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
CATV and PON optical network work
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
Private fiber networks — a first-line fault finder for every crew van
Part of the Fusion Splicers & Connection range — see the specifications above for the figures that matter on this work.
K-150 components
- K-150 mini OTDR main unit
- AC/DC adapter
- Calibration certificate
- User manual (CD)
- Trace viewer software (CD)
- Instrument package with strap
- Optical connectors ×2
- USB data cable
Documents for this model
Product Catalog 2026 — this model appears in our full-range catalog (PDF), published in the Downloads center.
User manual — if you need the manual for this model now, ask via the inquiry form below or on WhatsApp and we will send the available documents with your quote.
More fusion splicers & connection
Questions about the K-150
Can the K-150 carry our own brand?
Private labeling is made to your requirements and confirmed per order — labels with your logo, part numbers and barcodes on the tools, the inner boxes and the outer cartons, ready for your warehouse. The products most often labeled are the K-35 cleaver, the KS-1 Kevlar shears and the K-870 stripper.
Can we order a small lot, unbranded?
Yes. Neutral stock is held for the core range: small lots are welcome, you can mix models in one shipment, and restock as you sell. Prices are on request — EXW factory pricing.
Ask for a quote — K-150
Tell us the quantity, and whether you want it neutral or with your brand on it.
