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$145.00Earn 145 points!
The ONWA KTD-TM520 is a highly popular, dual-frequency transom-mount transducer. It is the “go-to” choice for recreational fishermen and leisure boaters using ONWA chartplotters and fishfinders, offering a balance of shallow-water detail and mid-depth penetration.
The KTD-TM520 is a 600W dual-frequency transducer housed in a high-impact plastic casing. Designed for transom mounting, it features a kick-up bracket that protects the sensor from damage if it strikes an underwater object or is grounded.
A key feature is the integrated temperature sensor, which allows your display to show real-time water surface temperature—a critical metric for finding fish “breaks” and thermal edges. It uses a 6-pin waterproof connector, making it natively compatible with almost all current ONWA chartplotter/sounder combinations.
| Feature | KTD-TM520 Technical Data |
| Mounting Type | Transom Mount (External hull) |
| Housing Material | High-impact Durable Plastic |
| Transmit Power | 600 Watts Max (300W Nominal) |
| Frequencies | 50 kHz (Deep/Wide) and 200 kHz (Shallow/Detail) |
| Beam Angle | 50kHz: 60° |
| Sensor Type | Depth and Water Surface Temperature |
| Connector | 6-Pin ONWA standard plug |
| Cable Length | 8 to 10 Meters |
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