What depth rating do your underwater transducers have?

Our underwater transducers are designed for various depth ratings depending on the model, typically ranging from shallow water applications to deep sea use. Each product specifies maximum operating pressure and depth limits.

How do you ensure waterproof reliability?

We use marine-grade materials, specialized sealing techniques, pressure testing, and quality control processes to ensure long-term waterproof performance in marine environments.

Can these transducers work in saltwater environments?

Yes, our underwater transducers are designed for both freshwater and saltwater applications. We use corrosion-resistant materials and protective coatings for marine durability.

What frequencies work best for underwater applications?

Lower frequencies (20-50 kHz) provide better range and penetration for depth measurement, while higher frequencies (200+ kHz) offer better resolution for detailed imaging. Choice depends on application requirements.

How do you handle cable and connector reliability underwater?

We use marine-grade cables, waterproof connectors, strain relief systems, and protective housings to ensure reliable underwater connections. All connections are tested for pressure and water resistance.

Dual-Frequency Ultrasonic Depth Sounder Transducer | CS-220KH

The Yujie CS-220KH is a high-performance dual-frequency ultrasonic transducer designed for underwater positioning and depth measurement in seas, rivers, and lakes. Operating at both 43 kHz and 200 kHz, this transducer offers broadband capabilities for superior resolution and accuracy. It features a rugged brass housing and polyurethane acoustic window, ensuring durability in marine environments with versatile installation options for both internal and external hull mounting.

Features & Applications

Technical Specifications

Each product is organized for procurement review: core performance, fit and mounting, operating limits, integration notes, and RFQ-ready supply terms.

Application Fit

•Marine Depth Sounders: Professional sonar systems for boats and ships
•Underwater Positioning & Mapping: Hydrographic surveys and seabed mapping
•Fishery & Aquaculture: Detects underwater features and fish movements

Features

✔Dual-Frequency Capability – Supports both 43 kHz and 200 kHz, allowing for high-resolution depth measurement
✔Wideband Technology – Provides excellent frequency response, enhanced depth resolution, and reduced blind zones
✔Marine-Grade Durability – Constructed with a robust brass housing and polyurethane acoustic window for long-lasting performance
✔Versatile Installation Options – Supports both internal and external hull mounting for various marine applications
✔Optional Features – Available with a built-in temperature sensor (Ds18B20) and impedance-matching transformer for enhanced integration

Applications

•Marine Depth Sounders: Professional sonar systems for boats and ships
•Underwater Positioning & Mapping: Hydrographic surveys and seabed mapping
•Fishery & Aquaculture: Detects underwater features and fish movements

Need Engineering Support for CS-220KH?

Provide target depth, saltwater or freshwater use, cable requirements, and mounting details for an RFQ-ready recommendation.

Request Specifications & Pricing for CS-220KH

Get detailed datasheets, OEM pricing, and lead time for the CS-220KH. MOQ for underwater evaluation builds commonly starts from 10 pcs for standard configurations. Available documentation can include outgoing electrical data, waterproof QC records, and basic batch inspection reports.

The email opens pre-filled with a short spec checklist — partial details are fine. Typical reply within one business day.

Key Specifications

Performance

Model	CS-220KH
Operating Frequency	43/200 kHz ± 5%
Element Structure	Circular
Beamwidth (43 kHz)	40°
Beamwidth (200 kHz)	9°
Quality Factor (43 kHz)	10
Quality Factor (200 kHz)	3
Rated Power (43 kHz)	400 W
Rated Power (200 kHz)	600 W
Impedance (43 kHz)	580 Ω ± 30%
Impedance (200 kHz)	600 Ω ± 30%
Capacitance	3.2 nF
Acoustic Window	Polyurethane
Cable Length	15 m

Mechanical

Element Material/Diameter	PZT / 51 mm
Housing Material	Brass
Weight	880 g

Operating Limits

Voltage Response	165 dB / -187 dB

Integration

RFQ Guidance	Connector style, cable jacket, potting interface, and mounting hardware are usually aligned during RFQ review.

Procurement

MOQ / Sample Policy	MOQ for underwater evaluation builds commonly starts from 10 pcs for standard configurations.
Sample Lead Time	Sample lead time is usually 7-12 working days after cable, sealing, and mounting requirements are confirmed.
Production Lead Time	Batch production is commonly 3-6 weeks depending on pressure sealing, cable assemblies, and quantity.
Customization Scope	Common OEM changes include cable length, sealing structure, frequency window, potting design, and housing material.
Available Documents & Reports	Available documentation can include outgoing electrical data, waterproof QC records, and basic batch inspection reports.