You can buy compatible transducers for the MEDISON SA X4 directly from our China-based sourcing network, including the EC4-9/10ED endocavity probe and the other convex, linear, and endocavity models this console accepts. The SonoAce SA X4 (badged both MEDISON and Samsung Medison depending on production year) was sold as a portable shared-service color Doppler system, and because the line is long out of OEM production, most owners now replace probes with either compatible new units or professionally repaired originals. Send us the model number printed on the probe housing and we will quote against current stock.
Reading the MEDISON model number
MEDISON transducer names encode the array geometry and frequency, which makes cross-referencing straightforward once you know the convention. The letters describe the array type and the digits describe the operating frequency band in MHz.
- EC4-9/10ED — endocavity (EC) micro-convex array operating across roughly 4–9 MHz, with a 10 mm radius tip designed for transvaginal and transrectal work.
- C prefixes denote convex abdominal arrays (for example a C2-5 covers a 2–5 MHz abdominal and obstetric range).
- L prefixes denote linear arrays used for vascular and small-parts imaging at higher frequencies.
Because the SA X4 was a badge-shared platform, MEDISON-marked and Samsung Medison-marked probes of the same model number are electrically interchangeable on the console. Our full parts list sits in the Samsung Medison probe catalog, and the console-level model overview is covered in our companion guide to compatible Samsung SonoAce X4 probes.
The EC4-9/10ED endocavity probe in practice
The EC4-9/10ED is a micro-convex endocavity transducer with a small tip footprint that suits gynecology, obstetrics, and urology examinations. The wide 4–9 MHz band lets the operator trade penetration for near-field resolution: lower frequencies for deeper pelvic structures, higher frequencies for detailed near-field detail. It is a single-console probe, so buyers should confirm the exact model marking rather than assuming a similar endocavity probe from another Medison system will connect.
When an original EC4-9/10ED shows a dead element, a cracked lens, or intermittent connector faults, repair is usually the better commercial route than buying new OEM stock that no longer exists. Element or lens repair typically runs about 30–60% of the price of a replacement probe, and turnaround is generally 5–10 working days once the unit reaches our bench. Details of that process are on our probe repair page.
New compatible versus repaired original
For a discontinued platform like the SA X4, the decision usually comes down to what you already have in hand:
- Compatible new probe — a non-OEM unit built to the same model specification. Because it avoids the OEM brand premium, a compatible probe commonly lands 40–70% below historic OEM list pricing.
- Repaired original — the right choice when you own a physically intact probe with a single fault, since it preserves the exact original tuning at roughly a third to a half of replacement cost.
We do not publish fixed prices because they move with model, condition, and available stock. Every enquiry is handled as an RFQ: you send the model, we check stock and repair capacity, and we return a firm quote.
What to check on arrival
Whether you receive a compatible new EC4-9/10ED or a repaired original, run the same quick acceptance check before returning the probe to clinical use. Connect it to the SA X4, load a live scan, and sweep a phantom or a tissue-mimicking target across the full field of view. Watch for dark vertical bands, which indicate dead elements, and confirm the color Doppler box fills evenly. Inspect the lens and housing for cracks that could compromise disinfection, and flex the cable near the strain relief to rule out intermittent connector faults. A probe that images cleanly across the whole aperture and holds a stable connection through cable movement is ready for service; anything that drops out under flexing should come back to us before deployment.
How to request a quote
Send the model number stamped on the probe (for example EC4-9/10ED), the system it connects to, and whether you need a compatible new unit or a repair. Message us on WhatsApp at +86 136 2236 3037 or use our contact page, and we will reply with availability and pricing for your SA X4.
