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Sopto SPTK-3302SJ Mini-Pro — 8-in-1 OTDR Fiber Tester

The Sopto SPTK-3302SJ Mini-Pro 8-in-1 OTDR is a compact multifunction optical tester that combines OTDR, OPM, LS, VFL, IL, RJ45 sequence, and lighting functions. Supporting 1310/1550 nm dual wavelengths with 22 dB / 20 dB dynamic range, it offers up to 60 km testing for G.652 SM fibers. With its 3.5″ color LCD, TF card storage, and 4000 mAh Li-ion battery, it’s ideal for FTTH and optical maintenance.

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Description

The Sopto SPTK-3302SJ Mini-Pro OTDR is a high-precision, 8-in-1 optical test device designed for FTTx, access network construction, and optical maintenance. It combines OTDR, Event Map, Optical Power Meter (OPM), Light Source (LS), Visual Fault Locator (VFL), Insertion Loss (IL), RJ45 Sequence Test, and lighting functions into one handheld tester.

Operating at 1310/1550 nm, the unit supports G.652 single-mode fiber with a dynamic range of 22/20 dB and a test range up to 60 km. The 8 m event blind zone and 15 m attenuation blind zone ensure pinpoint accuracy for fiber breakpoints, splices, and reflection points.

Equipped with a 3.5″ color LCD, internal 600 results storage, and TF card expansion, the device simplifies field reporting. The Class II laser, SOR file format, and FC/PC (SC/ST interchangeable) connectors ensure compatibility and safety.

Powered by a 3.7 V 4000 mAh Li-ion battery, it provides >12 h measuring time and >20 h standby, making it an excellent tool for telecom engineers, ISPs, and network installers performing OTDR testing, power measurement, or fault detection.

Application

FTTH deployment, PON maintenance, ISP fiber troubleshooting, Telecom and enterprise optical testing

Key Features

  • ✅ 8-in-1 multifunction tester: OTDR / OPM / LS / VFL / IL / RJ45 / Lighting

  • ✅ Dual-wavelength 1310/1550 nm, up to 60 km test range

  • ✅ 22 dB / 20 dB dynamic range, 8 m event blind zone

  • ✅ 3.5″ color LCD and TF card storage for test records

  • ✅ Supports SOR file format for OTDR data export

  • ✅ 4000 mAh Li-ion battery with 12-hour test endurance

  • ✅ Interchangeable FC/PC, SC, ST connectors

  • ✅ Lightweight (< 400 g), shockproof, and drop-resistant

Specifications

Specification Details
Brand Sopto
Model SPTK-3302SJ Mini-Pro
Product Type 8-in-1 OTDR & Optical Test Instrument
Functions OTDR / Event Map / OPM / LS / VFL / IL / RJ45 / Lighting
Wavelengths 1310 nm / 1550 nm
Fiber Type G.652 Single-mode Fiber
Dynamic Range 22 dB (1310 nm) / 20 dB (1550 nm)
Event Blind Zone 8 m
ATT Blind Zone 15 m
Test Range 10 m – 60 km
Pulse Width 5 ns – 10,000 ns
Ranging Accuracy ± (1 m + Sampling Interval + 0.005 % × Test Distance)
File Format SOR (Standard OTDR Format)
Data Storage Internal ≥ 600 results, External TF Card
Display 3.5-inch Color LCD
Laser Safety Class II
Connector FC/PC (Interchangeable SC, ST)
OPM Range –50 dBm to +26 dBm
OPM Calibration Wavelengths 850 / 1270 / 1300 / 1310 / 1490 / 1550 / 1577 / 1625 nm
LS Output Power ≥ –5 dBm (FP-LD)
LS Modulation Frequency CW / 270 Hz / 1 kHz / 2 kHz
VFL Wavelength / Power 650 ± 20 nm / ≥10 mW
RJ45 Test Function Sequence and continuity check
Interface Port Micro USB
External Storage TF Card
Battery Type 3.7 V 4000 mAh Li-ion (Polymer)
Battery Life Measuring: >12 h / Standby: >20 h
Power Adapter 5 V DC, 1 A
Operating Temperature –10 °C ~ +50 °C
Storage Temperature –40 °C ~ +70 °C
Humidity 0–95 %, Non-condensing
Weight < 400 g
Dimensions (L×W×H) 173 × 85 × 42 mm
Warranty 12 Months

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