Exfo FOT-92AX Optical Power Meter
The EXFO FOT-92AX is a versatile optical power meter offering precise signal strength readings across various wavelengths. Designed for both lab and field use, it provides long battery life, durability, and intuitive operation. Suitable for both SM and MM fiber, it's a dependable tool for telecom professionals.
- Model
- Exfo FOT-92AX
- Calibration
- Available on request
- Price
- $119
- Status
- In stock
- RFQ ref
- FOT-92AX
This unit
The EXFO FOT-92AX is a field-portable optical power meter engineered for precise measurement of signal strength across single-mode and multimode fiber networks. Operating across the 780 nm to 1600 nm wavelength range with an InGaAs detector, it delivers measurements from −43 dBm to +35 dBm with accuracy of ±0.2 dB under calibration conditions. The meter supports automatic wavelength selection and includes integrated 2 kHz signal detection for fiber identification and accelerated testing protocols.
Technical Specifications
Wavelength Range: 780 nm to 1600 nm
Detector Type: InGaAs
Measurement Range: −43 dBm to +35 dBm
Accuracy: ±0.2 dB (calibration conditions); ±0.12 dB (20 dBm to 28 dBm); ±0.3 dB (28 dBm to 35 dBm)
Measurement Units: dBm, dB
Signal Detection: 2 kHz for fiber identification
Fiber Compatibility: Single-mode, multimode
Key Features
Automatic wavelength selection across full operating range
InGaAs detector provides sensitivity from ultraviolet through near-infrared bands
Large backlit LCD display for field readability
Dual power architecture: 9V alkaline battery with automatic switchover to rechargeable NiCd/NiMH pack; supports AC adapter charging
Battery endurance: up to 20 hours per charge or replacement
Compact dimensions: 22 cm × 11 cm × 5 cm; weight 0.96 kg
Interchangeable optical connectors: FOA standard with adapter options for FC, SC, ST, LC (FOA-12 Biconic, FOA-14 D4, FOA-16 SMA/905, SMA/906, FOA-22 FC, FOA-24 Radiall VFO/DF)
Typical Applications
Installation and commissioning of fiber-optic networks
In-service power level verification
Fiber identification via 2 kHz signal detection
High-power measurement for amplified systems and long-haul links
Compatibility & Integration
FasTest-compatible sources (e.g., FLS-210A/B) enable automated loss testing with reduced measurement error
Optional RS-232 interface kit and USB connectivity for data export to ToolBox software
Direct integration with FTB-300 platform and PC-based analysis tools
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | −43 dBm to +35 dBm | Voltage / Current Range: 9V battery (alkaline, NiCd, or NiMH) |
| AC adapter supplied | Wavelength Range | 780 nm to 1600 nm |
Exfo FOT-92AX — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Exfo FOT-92AX. Calibration covers detector responsivity at 850, 1310, 1490, 1550, and 1625 nm, absolute power accuracy, linearity across the full dynamic range, and reference power level. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Exfo FOT-92AX faults: detector contamination, damaged FC/PC input port, display failure. Common repairs include detector port cleaning or replacement, display repair, and battery or capacitor replacement in older HP/Agilent/Keysight units.
Exfo FOT-92AX price
This Exfo FOT-92AX is listed at $119. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Exfo FOT-92AX calibration cost
NIST-traceable calibration for the Exfo FOT-92AX is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers detector responsivity at 850, 1310, 1490, 1550, and 1625 nm, absolute power accuracy, linearity across the full dynamic range, and reference power level. Turnaround is 1 to 3 business days after receipt. See full calibration details →
