Why Choose TESTRO?

• Exceptional Value – Get flagship signal-analyzer performance while staying within budget.

• Proven Global Trade Expertise – Years of cross-border B2B shipping; quick replies and on-time delivery.

• Total Transparency – Serial number, full option list, and additional photos/videos provided on request.

• Customer-First Support – Our technical team is always available to answer product or logistics questions, ensuring a worry-free purchase.

Contact Us Now for a Quote

Interested in this Keysight N9020B X-Series Signal Analyzer?
Leave a message on our website and include your WhatsApp number or email so we can:

• Send you a personalized quotation and special pricing.

• Provide extra photos or detailed configuration information.

• Discuss shipping, duties, warranty, and any other specifics you need.

- Straightforward Q & A -

• How can I be sure the unit works properly?
  We accept third-party inspections and supply an official test report. You are also welcome to visit our facility for on-site testing.

• Is your pre-owned equipment sourced reliably?
  Yes. Nearly all units come directly from established electronics manufacturers and production lines.

• What if the device develops a fault?
  Each unit includes a three-month warranty. Return it within this period and we will repair or replace it. Most issues are software-related and can usually be fixed through a remote support session.

• What technical support do you provide?
  Our engineers and after-sales team are on hand to resolve any issue—so you can purchase with confidence.

• How do you ship and handle customs?
  We primarily use DHL, delivering worldwide in about 3–5 days. If customs clearance is a concern, we can ship DDP (Delivered Duty Paid); you only need to sign for the package.

Founded in 2017 and headquartered in Shenzhen, TESTRO Electronics LLC focuses on the secondary sale and flexible rental of high-end electronic test instruments. The team counts 30 employees and operates a 1,500 m² warehouse and inspection center in Qianhai, Shenzhen.

Industry Background & Resource Sourcing

Over the past two decades, rapid advances in China’s radio-frequency sector have shortened production-line refresh cycles to roughly 3–5 years. Leveraging long-term partnerships with equipment OEMs, research institutes, and calibration labs, TESTRO acquires traceable, well-maintained decommissioned or replacement units. Every instrument undergoes a five-step technical check and third-party calibration before entering stock, ensuring reliable performance data.

Core Services & Delivery Process