Lineman in a hard hat and hi-vis gear working on an aerial fiber optic closure at the top of a utility pole28%;
Precision you can trust

Fiber optic tools built for the field

Engineered for the field. Trusted by professionals. Splicers, power meters, fault locators and identifiers built with the technicians who use them.

Shop the rangeBulk & reseller pricing
6,500+Companies served 74Countries 3–4business daysUS fulfillment

Delivered in 3–4 business days

Express freight from US warehouses — no overseas transit.

24-month warranty

Repair or replace. 30-day money-back guarantee.

Calibrated on dispatch

Every tool calibrated before shipping, documentation on request.

Net 30 terms

Purchase orders accepted from approved accounts.

Karvinger KEFOK6 6-motor core alignment fusion splicer, 3/4 front view with color touchscreen showing the VFL and OPM menu
Meet the flagship

Six motors. 0.02 dB.

Enterprise-grade six-motor core alignment for the independent contractor and the network operator alike — with a high-precision OPM and a 10 mW VFL integrated into one rugged chassis.

0.02 dB typical6-motor core6 s splice / 16 s heatSM / MM / DS / NZDS
$997.00 Shop the KEFOK6

Top-selling tools
Karvinger KEFOK6 6-motor core alignment fusion splicer, 3/4 front view with color touchscreen showing the VFL and OPM menu

KEFOK6 - 6-Motor Core Alignment Fusion Splicer

I0-L5MF-YOFY

KEFOK6

0.02 dB typical6-motor core Low stock 4 units
$997.00
Karvinger KIFOS2 optical fiber identifier, front view with display and motorized EasyClamp

KIFOS2 - Optical Fiber Identifier

K2-5631-F6KA

KIFOS2

Micro-bend detection850–1700 nm In stock 96 units
$169.90
Karvinger KPMOY9 4-in-1 optical power meter, front view with color display

KPMOY9 - Optical Power Meter

2J-9FUD-0TJW

KPMOY9

−50 to +26 dBm800–1700 nm In stock 68 units
$69.90
Karvinger KLFO50 50mW visual fault locator with wrist lanyard, front view

KLFO50 - Visual Fault Locator 50mW

CX-761O-H6UN

KLFO50

50 mW650 nm visible red In stock 270 units
$49.90
Karvinger KEFOK6 6-motor core alignment fusion splicer, 3/4 front view with color touchscreen showing the VFL and OPM menu

KEFOK6 - 6-Motor Core Alignment Fusion Splicer

I0-L5MF-YOFY

KEFOK6

0.02 dB typical6-motor core Low stock 4 units
$997.00
Who we are

Designed with field experts, for everyday fiber work

At Karvinger we design professional-grade fiber optic tools built to help technicians work faster, more precisely and more efficiently in the field. We work closely with industry experts to engineer durable, innovative and ergonomic equipment that meets the highest standards.

Today more than 6,500 companies across 74 countries trust Karvinger to support their daily operations.

Learn more
Field technician in a workshop holding up a pen-style visual fault locator
Business solutions

Fleet quantities, one purchase order

Volume pricing from 5 units, Net 30 for approved accounts, consolidated shipping and documentation on every line. Quotes returned within one business day.

Request a quote