JILONG (Established in 1993, with a development history of 33 years)



JILONG OFI‑60P Hand‑Held Live Fiber Identifier Integrated Optical Power Meter for Data Center Field Maintenance
✅ CNC All‑Metal Robust Housing
Precision CNC‑machined full‑metal housing, wear‑resistant and drop‑proof for harsh field & data‑center conditions. Pen‑shaped lightweight body (246.5 g), comfortable for one‑hand operation.
✅ 2‑in‑1: Fiber Identifier + Integrated OPM Optical Power Meter
Combines live fiber identification and optical power measurement in one unit. Supports 7 standard wavelengths:850/980/1300/1310/1490/1550/1625 nm. 2.5 mm universal port compatible with SC/FC/ST connectors. Measurement accuracy ±0.2 dB, display resolution up to 0.01 dB.
✅ 4 Interchangeable Chucks with Patent‑Protected Chuck Storage Bin
Four replaceable chucks fit 0.25 mm bare fiber,0.9 mm pigtail,2.0 mm &3.0 mm patch cords. Built‑in storage bin prevents loss of small chucks, quick swap on‑site.
✅ Live‑fiber Test Without Service Interruption
Test active optical fiber without cutting cable. No disturbance to running services, ideal for cable cut‑over and fiber tracing in data centers.
✅ Signal‑Direction Detection & Modulated‑Signal Recognition with Audible Buzzer
On‑screen arrow indicates signal transmission direction. Recognizes 270Hz /1kHz /2kHz modulated signals with buzzer alert. Screen shows real‑time power reading and signal frequency.
✅ Universal for SM & MM Fiber, Wide Wavelength Coverage
Working wavelength range:800‑1700 nm, works with both single‑mode and multi‑mode fiber for FTTH, data‑center and trunk‑line maintenance.
✅ Built‑in Bright LED Work Light
Integrated LED fill‑light facilitates inspection in dim cabinet, manhole and low‑light environments, no extra flashlight required.
✅ One‑Key Quick Test & Simple Operation
One‑button trigger for fast measurement. Just push up the latch to clamp fiber. Powered by 9V battery, portable for outdoor site work.
✅ Multiple Utility‑Model Patents
Patented designs for chuck storage, shading performance and multi‑size fiber detection, optimized for real‑world field engineering.
























