Philips Agilent HP S4 Sector Ultrasound Probe (21330A / 21114A) for Sonos Systems – Cardiac Phased Array Transducer

Product Overview

The Philips Agilent HP S4 (Part Number 21330A, also associated with 21114A series platforms) is a phased array sector ultrasound transducer developed for cardiovascular imaging on Hewlett-Packard (HP), Agilent, and early Philips Sonos ultrasound systems. Designed for adult cardiac, pediatric cardiac, and Doppler applications, the S4 delivers reliable image quality and excellent acoustic penetration for routine echocardiography examinations.

Operating in the low-frequency cardiac imaging range, the S4 sector transducer provides high-quality visualization of cardiac chambers, ventricular function, valvular structures, and blood flow dynamics. The compact phased array footprint enables effective imaging through narrow intercostal spaces, making it particularly suitable for transthoracic echocardiography.

The probe supports key cardiovascular imaging modes available on compatible Sonos platforms, including 2D imaging, M-Mode, Color Doppler, Pulsed Wave Doppler, and Continuous Wave Doppler. Its proven clinical performance has made it a widely used transducer in cardiology departments, hospitals, and diagnostic imaging centers worldwide.

Key Features

• Phased array sector transducer
• Optimized for cardiac imaging
• Excellent intercostal access
• Adult echocardiography applications
• Pediatric cardiac imaging capability
• Color Doppler support
• PW Doppler support
• CW Doppler support
• Reliable penetration performance
• Compatible with HP / Agilent / Philips Sonos platforms

Clinical Applications

Cardiology

• Adult echocardiography
• Cardiac function assessment
• Valvular heart disease evaluation
• Chamber size measurements
• Cardiac follow-up studies

Pediatric Cardiology

• Congenital heart disease assessment
• Pediatric cardiac examinations
• Follow-up echocardiography

Doppler Studies

• Hemodynamic assessment
• Blood flow evaluation
• Spectral Doppler analysis

Compatible Ultrasound Systems

Confirmed Compatible Systems

• HP Sonos 1000
• HP Sonos 1500
• HP Sonos 2500
• HP Sonos 4500
• HP Sonos 5500
• Selected Agilent Sonos platforms
• Selected early Philips Sonos platforms

Connector Platform

• HP / Agilent Sonos Connector

Not Compatible

• Philips EPIQ Series
• Philips Affiniti Series
• Philips CX30
• Philips CX50
• Philips iU22
• Philips iE33
• Philips HD11
• Philips ClearVue Series

Technical Specifications

Testing Procedure

Every HP S4 (21330A) probe undergoes comprehensive inspection and performance verification before shipment.

Testing includes:

• Crystal element integrity testing
• Image uniformity testing
• 2D image verification
• Color Doppler testing
• PW Doppler testing
• CW Doppler testing
• Connector inspection
• Cable inspection
• Housing inspection
• System recognition verification

Real testing images and videos can be provided upon request.

Warranty Information

• Fully tested and functional
• 60-day warranty
• Secure export packaging
• Worldwide shipping available
• DHL, FedEx, and UPS shipping options
• Typical delivery time: 2–5 business days

Why Choose Us

• Specialized supplier of ultrasound probes and replacement parts
• Extensive inventory of Philips, HP, and Agilent transducers
• Professional testing procedures
• Fast worldwide shipping
• Competitive pricing
• Responsive customer support
• Real testing images available before shipment

FAQ

Is this an original HP / Agilent probe?

Yes. This is an original HP / Agilent S4 sector ultrasound transducer later supported within Philips Sonos product lines.

What is the primary application of the S4 probe?

The S4 is primarily designed for cardiac and echocardiography applications.

Does the probe support Doppler imaging?

Yes. The probe supports Color Doppler, PW Doppler, and CW Doppler on compatible systems.

Is the probe fully tested?

Yes. All imaging and Doppler functions are verified before shipment.