Entry Level Loss Tester

OLT-20 Optical Loss Tester integrates laser source module and power meter module in one set, which can perform power testing and link loss testing in optic fiber network conveniently. The typical applications include fiber identification, attenuation and loss measurement, continuity verification and fiber link transmission quality evaluation for installation, routine inspection and daily maintenance of MAN, WAN and CATV systems as well as for lab test and research work.” replace the content beside the image. Features is wrong please check. Removal the configuration.


● Applicable on singlemode/multimode fibers
● Microprocessor & linear amplifier ensure long-time accuracy
● Quick response, no warm-up
● Interchangeable connectors: FC/SC/ST
● Dual-way power supply: 9V alkaline battery/Optional AC adapter
● Pocketsize, large LCD display
● Multi-wavelength measurement
● Display units: dB/dBm/mW/?W
● Link loss testing
● CW/Modulation mode (270/1K/2K Hz)
● Low power indication/Auto off


Laser Source Module
Wavelength (±20nm)1310/1550850/13001310/1550850/1300
Output Power≥ -7dBm
Spectral Width≤ 5nm
Emitter TypeFP-LD
Stability±0.05 dB/15min; ±0.10dB/8hr@1310/1550nm; ±0.15dB/8hr@850/1300nm
MOD Frequencies270, 1K, 2K Hz
Connector TypeFC/PC (Interchangeable ST, SC)
Optical Power Meter Module
Detector TypeInGaAs
Measurement Range-70 ~ +10dBm (1)-50 ~ +27dBm
Calibrated Wavelength(2)850, 1300, 1310,1490, 1550, 1625nm
General Specifications
Power Supply 9V Alkaline battery / optional 9V AC adapter
Battery LifeOPM mode≥40 hours; OPM+SLS mode≥20 hours
Operating Temperature-20℃ ~ 50℃
Storage Temperature-40℃ ~ 70℃
Relative Humidity0 to 95% (Non-condensing)
Dimension (H×W×T)145×75×25mm


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