KI 23400 & 27400 Handheld Two-Way Loss / Length / ORL Test Set

A Bidirectional Optical Loss Test set (OLTS) with optional length & ORL measurement that's perfect for ultra-high fiber count Tier 1 loss & length testing applications. A pair of compact instruments set new standards of productivity, accuracy, and ease of use.

Each fiber needs just one test hook-up and one key press for a complete bidirectional loss, length and ORL test, for both single-mode and multimode fiber, so the same test method can be used for all fibers in a network, eliminating administration, training, and test errors. Testing is accurate and can take only 5 seconds, direct onto a final standards compliant certification report. The Visitester option lights up the far end of the fiber to be tested.

A pair of instruments both display length as well as bi-directional loss and ORL each end, in one hook-up, in real time, with no need to specify master/slave instruments. A single instrument can also be used as a stand-alone light source & power meter, ORL meter, VFL, or tone generator / detector. 

KI234x series instruments feature the optical return loss (ORL) test option, as well as having an ultra-stable source with zero warm-up time to specification.

  • 25% of the size / weight, 7x the battery life of competitors 
  • SM, MM, quad & other wavelengths
  • Bidirectional Autotest loss, ORL & length testing on one fiber
  • Real time Pass / Fail display
  • 8,000 fiber memory and USB Interface
  • KITS™ reporting software
  • Autotest power meter
  • 1 % power accuracy & 24 calibrated λ, ISO 17025 traceable
  • Full QA & test reports for source stability / λ, & power meter linearity
  • 80 hr alkaline battery life
  • 3 Year warranty and calibration cycle
  • EF compliant multimode sources

Please enquire for other configurations to match your needs.

Zero warm-up laser

Instant high-accuracy testing. Unlike other sources, Zero Warm-Up sources are in-spec & stabilized in seconds.

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Interchangeable connectors

Use a single tester for: SC, LC, MPO, FC, HFBR, & other connectors - including universal & duplex options.

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One-touch AutoTest

Smart communication makes sure you always get a full, complete, and consistent test result.

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Real-time reporting software

Excel-based instrument connectivity for comprehensive reporting (against standards) and real-time data logging.

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ILAC/NATA ISO 17025 optical calibration

Internationally recognised traceable optical calibration to ISO17025

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Genuine 3 year calibration validity

Genuine 3 Year optical power meter re-calibration validity

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Total uncertainty specification

Our unique specifications cover accuracy in real world use - over all power levels, temperatures, connector and fiber types.

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Multimode test standard compliance

Kingfisher LED sources meet Encircled Flux and CPR requirements straight out of the box.

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Metal-free connectors

To avoid metal dust fragments damaging your tester and fiber-ends, we use high-end metal-free connectors.

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VisiTest option

Integrates a VFL into AutoTest, so the fiber end you need to test flashes red. Confidence with a quick & easy visual cue.

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Test tone with multi-fiber ID

Send & identify one of 12 unique test tones. Great for quickly verifying continuity, polarity and rack labelling.

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General Specifications:

For more detailed specifications, please select a specific part number from the parts & stock page.

Accuracy (meter) 1 % (0.06 dB)
Calibration validity (ISO17025) 3 years
Resolution (meter) 0.01 dB
Polarization sensitivity (meter) < 0.05 dB (typical)
Tone detection (meter) 150 ~ 9999 Hz ± 1 %
USB interfaces USB-micro for power & software / USB-A for memory key
Software KITS (free download)
Power Battery / External power via USB
Battery life Laser/LED source: 80 hours (typical) in Autotest, Power Meter: 1000 hours (typical)
Battery type 2x AA (LR6) Alkaline / 2x AA NiMH AA (rechargeable via USB)
Auto off Selectable
Display 74 mm x 55 mm high contrast LCD
Case Polycarbonate (body) / rubber (edges & corners), moisture resistance, 1-meter drop tested
Memory For 8,000 fibers / Unlimited on USB
Size 190 mm x 105 mm x 35 mm
Unit weight 0.42 kg
Shipping weight 1.5 Kg
Operating / storage temperature -15 to 55 °C / -25 to 70 °C
Relative humidity 0 ~ 95 %
Warranty 3 years

  • Cases
  • Accessories
  • Cleaning tools
  • Test leads 
Hybrid Adaptor Series
  • Sources, attenuators, OLTS
  • Most power meters except XL series
  • G2 connector
  • Useful to make test adapter leads
More Accessories...

Part Number Description + Applications MSRP *
KI27424-GE 850-1300 nm, 1310-1550 nm, Ge


USD $5251
Enquire now
KI27424-GE-APC 850-1300 nm, 1310-1550 nm APC, Ge


USD $5253.13
In stock
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KI27424L-GE Length, 850-1300 nm, 1310-1550 nm, Ge


USD $6008.95
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KI27424L-GE-APC Length, 850-1300 nm, 1310-1550 nm APC, Ge


USD $6010.43
Enquire now
KI23424OL-GE-APC ORL Length, 850-1300 nm APC, 1310-1550 nm APC, Ge


USD $6750
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KI27403-GE 850-1300 nm, Ge


USD $3500.05
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KI27403LV-GE Length VisiTester, 850-1300 nm, Ge


USD $3750.08
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KI23403OLV-GE-APC ORL Length VisiTester, 850-1300 nm APC, Ge


USD $4000
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KI23403OLV-GE-APC-50U ORL Length VisiTester, 850-1300 nm APC, 50 um, Ge


USD $4000
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KI27422-INGAAS 1310-1550 nm, InGaAs


USD $4250.1
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KI27422-INGAAS-APC 1310-1550 nm APC, InGaAs


USD $4252.57
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KI27422LV-INGAAS Length VisiTester, 1310-1550 nm, InGaAs


USD $4750.98
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KI27422LV-INGAAS-APC Length VisiTester, 1310-1550 nm, InGaAs, APC


USD $4752.37
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KI23422OLV-INGAAS ORL Length VisiTester, 1310-1550 nm U/S, InGaAs


USD $5000
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KI23422OLV-INGAAS-APC ORL Length VisiTester, 1310-1550 nm U/S, InGaAs, APC


USD $5000
Enquire now
KI27427-INGAAS-APC 1310-1490-1550 nm APC, InGaAs


USD $4375.78
Enquire now
KI27427LV-INGAAS-APC Length VisiTester, 1310-1490-1550 nm APC, InGaAs


USD $4875.81
Enquire now
KI23427OLV-INGAAS-APC ORL Length VisiTester, 1310-1490-1550 nm U/S APC, InGaAs


USD $5125
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KI27410-INGAAS-APC 1310-1550-1625 nm APC, InGaAs


USD $4675.44
Enquire now
KI27410LV-INGAAS-APC Length VisiTester, 1310-1550-1625 nm APC, InGaAs


USD $5175.32
Enquire now
KI23410OLV-INGAAS-APC ORL Length VisiTester, 1310-1550-1625 nm U/S APC, InGaAs


USD $5425
Enquire now

* Prices are per instrument. Price excludes tax, duties, and shipping.
This product is designed, made, and calibrated in Australia.

Not sure?

Fill out our 'Enquire now' form with as much detail as you can, and we'll help you get your test needs sorted.

Related info: How to choose an optical detector - Application Note