8-in-1 Mini OTDR | Compact Fiber Testing Tool

8-in-1 Mini Optical Time-Domain Reflectometer (OTDR)

JW3302SJ

8-in-1 Mini Optical Time-Domain Reflectometer (OTDR)

Designed for FTTx and access network testing, this compact OTDR combines eight functions into a single device. It is capable of detecting fiber breakpoints, length, loss, and input light automatically. The 3.5-inch color LCD display provides clear visual feedback, while the shock-resistant plastic casing ensures durability in field conditions. With a high-capacity 4000mAh lithium battery and USB charging support, it is built for portability and convenience.

Request a Quote

Features

Equipped with a 3.5-inch color LCD display for clear and intuitive operation.
Compatible with interchangeable FC, SC, and ST optical connectors.
Includes a 4000mAh high-capacity lithium battery for extended usage.
Internal storage for up to 600 test records, with expandable TF card support.
USB data export simplifies transferring test results to other devices.
Combines OTDR, event map, optical power meter, visual fault locator (red light), stable light source, loss test, RJ45 cable sequence testing, and lighting functions.
Compact and lightweight design enhances portability for fieldwork.
Durable shockproof casing ensures reliable performance in challenging environments.

Specifications

Model	JW3302S	JW3302SJ
Measurement Wavelength	1310nm/1550nm±20nm	1310/1550nm	1610nm±20nm (in-line test)
Fiber Type	G.652 SM fiber	G.652 SM fiber
Dynamic Range	24dB/22dB	24dB/22dB	24dB
Event Blind Zone	3m
ATT Blind Zone	8m
Test Range	3m to 60km
Pulse Width	3ns to 10us	5ns to 10us
Ranging Accuracy	±(1m + sampling interval + 0.005% × test distance)
Linearity	±0.2dB/dB
Sampling Points	16k to 128k
Sampling Resolution	0.05m to 8m
Reflection Accuracy	±3dB
Data Storage	Internal: ≥600 records External: TF card
Optical Connector Type	FC/PC (interchangeable SC, ST) or FC/APC (interchangeable SC, ST)	FC/APC (interchangeable SC, ST)
Optical Power Meter (OPM)
Wavelength Range	800nm to 1700nm
Interface Type	Universal joint FC/SC/ST
Measurement Range	-50dBm to +26dBm
Uncertainty	±5%
Frequency Identific	CW/270Hz/330Hz/1kHz/2kHz
Calibration Wavelength	850/980/1300/1310/1490/1550/1625/1650nm	850/1300/1310/1490/1550/1577/1625nm
Optical Light Source (OLS)
Laser Type	FP-LD
Output Wavelength	1310/1550nm	1310/1550nm	1610nm ±20nm
Output Power	≥-5dBm
Modulation Frequency	270Hz/330Hz/1kHz/2kHz
Stability	CW, ±0.5dB/15min (tested after 15min warm-up)
Optical Connector Type	FC/PC (interchangeable SC, ST) or FC/APC (interchangeable SC, ST)		FC/APC (interchangeable SC, ST)
Visual Fault Locator (VFL)
Wavelength	650nm ±20nm
Output Power	≥10mW
Operating Mode	CW/1Hz/2Hz
Optical Connector Type	FC/SC/ST
General
Display	3.5 inch color LCD screen
Power Supply	3.7V 4000mAh lithium battery, power supply adapter: 5V DC 2A
Battery Life	Standby: >20h, Measuring time: >12h
Operating Temperature	-10℃ to +50℃
Storage Temperature	-40℃ to +70℃
Relative Humidity	0 to 95% (non-condensing)
Weight	≤350g
Dimensions	188×88×44mm

Email: joinwit@joinwit.com
Tel.: +86-21 64357213

Get in Touch

Fiber Optic Test Equipment Manufacturer

Since 1998

We provide various testing equipment, measuring equipment, and monitoring equipment for the optical communication industry, and have accumulated a large number of professional technologies and mature solutions.

Engage in the research and development and manufacturing of desktop and handheld photoelectric testing instruments
The annual output of photoelectric testing equipment reaches 500,000 units
Passed ISO9001 series quality certification, 14001 environmental certification, CE certification, FC certification, RoHS certification, and many other international certificates
All products have 100% independent intellectual property rights, and provide OEM/ODM services
Our products have been recognized by Japan's NTT Communications, South Korea's SK Telecom, Deutsche Telekom, and the United States' Verizon, and have reached cooperation