The Keysight 53230A Universal Frequency Counter/Timer is a versatile instrument designed for precise frequency and time interval measurements. It features a 350 MHz frequency range, 12 digits/s resolution, and 20 ps time interval resolution. The counter supports a variety of measurement functions, including frequency, period, pulse width, rise/fall time, duty cycle, and phase. Its advanced triggering capabilities and built-in math functions enable complex signal analysis. The 53230A is ideal for applications requiring high accuracy and resolution, such as calibration, signal analysis, and component testing.

Keysight 53230A 350 MHz Universal Frequency Counter/Timer, 12 digits/s, 20 ps
The Keysight 53230A is a high-performance universal frequency counter/timer with a frequency range up to 350 MHz. It offers 12 digits/second resolution and 20 ps single-shot time interval resolution, making it suitable for demanding applications in metrology, communications, and research. The counter features a wide range of measurement functions, including frequency, period, pulse width, rise/fall time, and phase.
Product Condition & Availability
Keysight 53230A 350 MHz Universal Frequency Counter/Timer, 12 digits/s, 20 ps 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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