Shandong Senter Electronic Co., Ltd.
Main products:ADSL2+Tester,OTDR,IPTV Tester,VDSL2 Tester,E1 Tester,PON Power Meter,Optical Power Meter,Laser Source,VFL,Optical Fiber Identifier,Cable Fault Locator,Telephone Line Tester
Contact Us
  • Contact Person : Ms. Liu Anthea
  • Company Name : Shandong Senter Electronic Co., Ltd.
  • Tel : 86-533-3589257
  • Fax : 86-533-3587522
  • Address : Shandong,Zibo,No.98,Wanjie Road, New&Hi-Tech Area, Zibo, Shandong, China
  • Country/Region : China
  • Zip : 255086

Optical fiber identifier(ST820)

Optical fiber identifier(ST820)
Product Detailed
ST820 adopts the technology of Marco-bending, safe and credible.It has 5 grades indication for the identified transmission.

 Main Functions and Key Features1. Test bare fiber, tight tube fiber and fiber jumper2. Display light transmission direction3. 3 different types of adapters4. High detection accuracy 5. Identify 270Hz, 1kHz and 2kHz signal frequency6. 5 grades of optical signal strength display 7. Low voltage warning, automatic power off and energy-save design8. Easy to remove and replace adapter9. Small size, simple button operation10. Technical Specifications 


Wave length

identification range

900-1650nm ( 1550 nm )

Signal type identification

CW, 270Hz±5%, 1KHz±5%, 2KHz±5%

Detector type



-28dBm (@1550nm, bare fiber)

Insertion Loss (1550nm)

Φ250μm:1.0dB; Φ900μm:0.5dB; Φ3mm: 0.5dB

Adapter type

Φ250μm bare fiber, Φ900μm tight tube fiber,

Φ3mm tail fiber

Light signal indication

Direction indicator light + Off and on buzz sound +

Strength indicator light

Comparison light

signal indication

Direction indicator light + Frequency indicator light +

Continuous buzz sound + Strength indicator light


Li+ rechargeable battery

Battery working

duration (h)

> 4

Working temperature(C)


Storage temperature(C)


Relative humidity


Optical fiber identifier(ST820)

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