With safe and credible Great curve tech ST820 Optical Fiber Identifier could identify transmission directions without interrupting service and cutting fiber. The measure signal will not affect the normal signal because of low loss. And it can also test the speed with help of comparison light. There are 5 grades indication for identified signal and comparison light signal. It is very useful for proper core line choosing in field cutover and construction

Key Features and Functions...

· Detectors for naked fiber, close packed fiber and pigtail

· Identify diversiform signal frequencies: 270Hz, 1KHz, 2KHz

· 5 grades signal intensity indication

· Display transmission direction

· Detachable detector

· Low voltage indication

· Auto shut off

· Chargeable Li battery

· Portable & Simple

Technical Specifications...

· Available wavelength range: 800～1700nm

· Available signal type: CW, 270Hz±5%, 1KHz±5%, 2KHz±5%

· Detector: InGaAs (photosensitive interface: 1mm, 2pcs)

· Sensitivity: -38dBm (@1550nm, bare fiber)

· Insert loss (1550nm):

* 250μm: 1.0dB; 

* 900μm: 0.5dB;

* 3mm: 0.5dB;

· Adapter:    

* 250μm for bare fiber

* 900μm for tight tube fiber

* 3mm for tail fiber

· Communication signal indications: Direction + discontinuous buzzer + intensity indicator light

· Comparison light indication: Direction + Frequency + Discontinuous buzzer + Intensity indicator light

· Signal Intensity indication: 5 grades LED indication

· Continuous working time:＞4 hours

· Working temperature: 0～40℃

· Storage temperature: -20～60℃

· Relative humidity: 0～95%

· Dimension: 160mm×35mm×30mm

· Weight: 200g