Dedicated customer support
Technical and pre-sales questions answered by people who know the tools. Ask before you order, or after — same team either way.
| Hours | Mon – Fri, 8:00 AM – 6:00 PM (PDT) |
|---|---|
| Response | Within 24 – 48 business hours |
| support@karvinger.com | |
| Address | 412 W 7th Street, Clovis, NM 88101, United States |
Send us a message
Tell us the model and what you are seeing in the field. We reply within 24 – 48 business hours.
Answers, before you ask
Before you buy
Do you accept business purchase orders (PO)?
Yes. We support PO-based purchases for professional clients and can provide formal quotations and invoices. Net terms may be available upon approval.
Do you offer bulk pricing or reseller discounts?
Yes. Volume pricing starts at 5 units. Contact us for a custom quote tailored to your project or team size.
Are your tools compliant with industry standards?
Yes. Our tools follow telecom best practices and are compatible with 1310 / 1550 nm signals, CW and modulated tones, and standard field environments.
Can I request a recommendation for my use case?
Yes. Our team can advise you on the best tool based on your application — installation, troubleshooting, maintenance or enterprise deployment.
Do you work with ISPs, contractors and enterprise IT teams?
Yes. Our clients include fibre contractors, ISPs, integrators, MSPs and enterprise infrastructure teams across the U.S. and Europe.
Shipping & handling
How fast do you ship?
Delivery speed depends on location, selected shipping method and logistics routing. Standard shipping 3–6 days; express shipping 2–3 days.
Where do orders ship from?
All U.S. orders ship from our U.S.-based warehouses for fast delivery.
Do you ship internationally?
Yes. International shipping is available at checkout.
Will I receive tracking information?
Yes. Tracking details are automatically emailed once your order ships.
Warranty & support
Is there a warranty?
Yes. All Karvinger products include a 24-month warranty, repair or replace, with no restocking fee.
What if the product doesn’t meet my needs?
You can return the product within 30 days according to our refund policy — a 30-day money-back guarantee.
Can I speak with a real person before ordering?
Yes. Our English-speaking support team is available Monday to Friday, 8:00 AM – 6:00 PM (PDT) for technical and pre-sales questions.
Do you provide documentation and user guides?
Yes. Every product includes clear, easy-to-follow documentation, and digital copies are available upon request.
Product questions
Do your tools come calibrated?
Yes. All tools are calibrated before shipping and ready for immediate field use.
Are the batteries rechargeable?
Yes. Our fibre identifiers, VFLs and power tools use rechargeable batteries.
Are your tools suitable for outdoor or heavy field use?
Yes. Karvinger products are designed for daily field conditions and professional environments.