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Datasheet generated 2026-10-07
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Fluke Networks FiberLert™ Detector

Fluke · Safety & Detection · Tools · USA · fluke.com
Part Number
5317262
Fluke Networks FiberLert™ Detector

Want to quickly verify fiber activity, polarity, and connectivity without spending thousands? Now you can for less than $200. Check out the FiberLert.

Technical Specifications

Manufacturer part number (MPN)5317262
BrandFluke
CategoryTools
Operating PrincipleFiberLert is a live fiber detector that senses near infrared light emitted from fiber optic cabling. A continuous red glow at the handle and an audible beeping noise (if not switched off) indicates the presence of near infrared light.
Optical InterfaceNon-contact ceramic ferrule. Fits directly with 1.25 mm LC receptacles. Tethered ferrule adapter for testing 1.25 mm ferrule patch cord. Supports single-mode, multimode, UPC and APC connectors and ports.
Wavelength Detection850 nm to 1625 nm
Optical Power Detection Range+3 dBm to -30 dBm
Light DetectionVisible steady red LED indicator when optical power is detected
Lightbeat™ IndicatorFlashes twice every two seconds when unit is on and battery strength is sufficient.
Battery SaverUnit automatically turns off after five minutes of inactivity
Batteries2 AAA alkaline batteries included
Battery LifeTypically, greater than 1 year (5 hrs. of use a week)
Item Size0.6” x 1.0” x 6.6” / 1.6 x 2.5 x 16.8 cm
Item Weight2.1 oz / 59 g
Operating Temperature Range-10 °C to 50 °C
Operating Humidity Ranges95 % (10 °C to 35 °C) Non-condensing 75 % (35 °C to 40 °C) Non-condensing uncontrolled < 10 °C
Operating Altitude≤ 3000 meters
Storage Temeperature-20 °C to 50 °C

Properties

MOQ1

Cross-References

Attached Documents