The Exfo FOT-90A Optical Loss Test Set is a compact, handheld instrument designed for performing insertion loss measurements on fiber optic cables. This unit integrates a stable light source and a precise optical power meter, allowing for efficient and accurate testing in the field. It supports multiple wavelengths, commonly 1310 nm and 1550 nm, making it suitable for a variety of single-mode fiber applications. The FOT-90A features a user-friendly interface with a large LCD display for easy reading of measurement results. Its rugged design ensures durability in demanding field environments. The device is commonly used by technicians and installers for verifying the integrity of fiber optic links, troubleshooting network issues, and ensuring optimal network performance.

Exfo FOT-90A
The Exfo FOT-90A is a handheld optical loss test set designed for accurate and reliable fiber optic cable testing. It combines a light source and power meter in a single unit, enabling quick and easy measurement of optical power and insertion loss. Ideal for field technicians and network installers.
Product Condition & Availability
Exfo FOT-90A is in excellent working condition and has been thoroughly tested for performance and reliability. We offer both new and professionally refurbished options, depending on availability and customer preference.
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Integrated Solutions & Deployment Support
Beyond individual products, Aumictech provides end-to-end solutions for manufacturing line deployment and test station setup. Our team can assist with system integration, configuration, and equipment selection tailored to your production requirements.
Trusted Industry Experience
With over a decade of experience, Aumictech is a recognized leader in RF and optical test equipment sales and services. All units are supported by our in-house calibration and repair facility based in Downingtown, PA, ensuring technical reliability and long-term value.
Customer Commitment
We’re committed to exceptional customer service, offering a 15-day return or replacement (ROR) policy for peace of mind. Our team is always available to assist with pre- and post-sale support.
Fast Shipping & Flexible Payments
We offer rapid global shipping through FedEx, UPS, and DHL, with most orders dispatched within 1–3 business days. Multiple secure payment options are available, including PayPal, ACH, wire transfers, and major credit cards.
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