Mini OTDR K-3300
The entry OTDR done right: a 3.5-inch touch-screen mini OTDR with event map, VFL and optional power meter — dual-wavelength for build work, live-fiber builds for in-service networks.
Typical work: FTTH installation, acceptance and maintenance testing; In-service (live fiber) monitoring at 1550 / 1610 / 1625 nm; Emergency fault location for access networks.
Get a Quote WhatsApp UsNeutral stock in small lots, or private label made to your requirements. Prices on request — EXW factory pricing.
K-3300 key features
- OTDR, event map, VFL and work light in one 300 g handheld
- Four builds: dual-wavelength 1310/1550 at 22/20 dB, or live-fiber 1550 / 1610 / 1625 nm
- 3.5-inch capacitive touch screen with gesture operation and curve scaling
- Event dead zone 3 m, attenuation dead zone 12 m, range to 80 km
- Optional power meter (−50 to +26 dBm) and light source
- Saves .sor traces and .jpg screenshots; two-trace comparison on board
- USB data transfer and remote software upgrade
- More than 6 hours per charge
K-3300 specifications
| Display | 3.5-inch capacitive touch screen |
|---|---|
| Event dead zone | 3 m |
| Attenuation dead zone | 12 m |
| Distance range | 0.5–80 km |
| Pulse widths | 5 ns – 20 µs |
| Loss measurement accuracy | ±0.05 dB/dB |
| Memory | 400 traces (.sor / .jpg) |
| VFL | 650 nm, >10 mW, FC/UPC |
| Power meter (optional) | −50 to +26 dBm, InGaAs |
| Light source (optional) | ≥−7 dBm, on the OTDR interface |
| Optical interface | FC / SC / ST / LC |
| Battery | Lithium, >6 hours |
| Dimensions | 143 × 80 × 32 mm |
| Weight | 0.3 kg |
Choosing a K-3300 Build
For construction and acceptance on dark fiber, the dual-wavelength K-3300D is the build: 1310/1550 nm traces, 22/20 dB of dynamic range for access spans, and a bend check that comes free by comparing the two wavelengths.
On a live network the test wavelength must stay clear of the traffic. Pick the F build your monitoring plan uses — 1550, 1610 or 1625 nm — and the OTDR's hardware and software protection handles the rest.
Need more screen, more range or intelligent event analysis? The K-3500 palm and K-4300 pro platforms share the same logic a step up.
Choose your K-3300 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 |
|---|---|---|---|---|
| Standard model | ||||
| K-3300D | 1310/1550 nm | SM | 22/20 dB | >10 mW |
| Live-fiber models — test with signals present | ||||
| K-3315F | 1550 nm | SM | 20 dB | >10 mW |
| K-3310F | 1610 nm | SM | 20 dB | >10 mW |
| K-3325F | 1625 nm | SM | 20 dB | >10 mW |
Where the K-3300 works
FTTH installation, acceptance and maintenance testing
Part of the Fiber Test Equipment range — see the specifications above for the figures that matter on this work.
In-service (live fiber) monitoring at 1550 / 1610 / 1625 nm
Part of the Fiber Test Equipment range — see the specifications above for the figures that matter on this work.
Emergency fault location for access networks
Part of the Fiber Test Equipment range — see the specifications above for the figures that matter on this work.
K-3300 components
- Mini OTDR K-3300 main unit (build as ordered)
- Power adapter and USB cable
- Carry case
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 fiber test equipment
Questions about the K-3300
Can the K-3300 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-3300
Tell us the quantity, and whether you want it neutral or with your brand on it.