Frequently Asked Questions

Everything you need to know about our precision electronics and support

What kind of warranty is provided on FNIRSI instruments?

All FNIRSI products, including oscilloscopes and testers, come with a standard 12-month warranty covering manufacturing defects and hardware failures under normal use.

How long does international shipping take?

Orders are typically processed within 48 hours. Depending on your location, international shipping usually takes between 7 to 15 business days via our tracked courier partners.

Where can I download the latest firmware and software for my device?

You can find all relevant firmware updates, PC software, and digital manuals in the 'Download' section of our official website by searching for your specific model number.

What is your return policy for faulty items?

We offer a 30-day return policy. If your device arrives DOA or develops a fault within the first 30 days, we will provide a prepaid return label and offer a full refund or a brand-new replacement.

Do your products come with calibration certificates?

Our high-precision tools are factory-calibrated. While a formal individual ISO certificate is not included in the box by default, our devices are tested against industry standards to ensure accuracy specifications are met.

Which payment methods do you accept?

We accept all major credit cards (Visa, MasterCard, American Express), PayPal, and localized payment options like Apple Pay and Google Pay for a secure checkout experience.