Raymarine ST900/P120 Transducer
Best thru-hull sensor for sailors needing reliable speed and temperature data.
This sensor is the gold standard for reliable speed and temperature data, essential for any serious navigator. The retractable housing is a brilliant touch, letting you pull the unit inside to prevent fouling or damage while docked. It requires drilling a hole in your hull, but the trade-off is a rock-solid, accurate connection that won't let you down.
$229.99
at
Sound Boatworks (ShopSoundBoatworks)
Who it's for
- Boat owners wanting simple, cost-effective maintenance without hauling
- Sailors prioritizing precise speed and temperature data accuracy
- Captains of larger vessels needing long-reach installation
Who should skip it
- DIYers uncomfortable drilling holes below the waterline
- Budget-conscious boaters preferring affordable transom-mount alternatives
- Boaters in waters prone to heavy marine growth
Performance breakdown
Data Precision
Delivers highly accurate speed and temperature readings for reliable navigation.
Installation Flexibility
Generous 45-foot cable length simplifies routing on larger vessels.
Maintenance Access
Retractable design allows for easy cleaning without hauling the boat.
Build Durability
Rugged construction withstands the harsh, corrosive marine environment effectively.
Mounting Stability
Secure thru-hull design ensures minimal drag and consistent sensor alignment.
System Integration
Seamlessly interfaces with standard Raymarine marine electronics ecosystems.
Key Specs
Type
Transducer
Transducer Type
Speed/Temp
Mounting
Thru-Hull
Included Accessories
13.7M (45') Cable
Model Number
E70673
Know before you buy
Still have a question?
Ask Metto anything about the Raymarine ST900/P120 Transducer before you decide.