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ST900/P120 Speed & Temp Thru-Hull Transducer Retractable with 13.7M (45') Cable
Speed performance has been taken to the next level with the ST900 Speed/Temperature sensor. Featuring the new Gen2 Paddlewheel, the ST900 outperforms all other paddlewheel sensors for responsive startup and linearity. The Gen2 Paddlewheel begins delivering accurate speed reporting as low as 0.3 knots and maintains smooth speed output through 45 knots.
Available with a plastic or bronze transducer housing, they sit nearly flush with the boat's hull and minimize drag with only 5mm (3/16") extending outside the hull. The housing has a valve assembly that helps to minimize water ingress in the bilge when the sensor is removed for routine maintenance of the paddlewheel.
Features:
- Speed and fast-response water temperature sensor
- Analog output for use with Raymarine instruments like i40, i50, iTC-5, and legacy systems
- Retractable for easy maintenance
- ST900 transducer core is retrofittable into existing Airmar P120 and B120 transducer housings
Specifications:
- Plastic
- Hull Material: Fiberglass/Metal
- Cable Length: 13.7M (45')
- Records: Speed/Temperature
- Hole Size: 51 mm (2")
- Mounting Style: Low Profile Thru-Hull
- Speed Range: 0.3 to 45 knots (.34 to 52 MPH/.55 to 83 KPH)
- Temperature Range: -10° to 40°C (14° to 104°F)
Specifications:
- Cable Length (Feet): 45'
- Mounting Style: Thru-Hull
- Speed Included: Yes
- Temperature: Yes
- Box Dimensions: 4"H x 6"W x 8"L WT: 2.15 lbs
- UPC: 723193846940
FAQs
Product & Usage
1. Is your gear authentic and warranty-backed?
Yes — we are an authorized US dealer for 300+ marine electronics brands. Every order ships with the manufacturer’s full warranty.
2. Are these products beginner-friendly?
Yes. Our products are designed for both seasoned boaters and first-time owners. Each unit ships with a manufacturer manual, and we’re happy to answer setup questions over email.
3. Are these products built for marine conditions?
Yes. Marine electronics are engineered for saltwater spray, vibration, and weather. Check the product specs for IPX waterproof rating and saltwater certifications.
Maintenance & Accessories
1. What maintenance does marine electronics require?
Rinse with fresh water after saltwater exposure, store in a dry place, and follow your manufacturer’s cleaning and storage instructions.
2. Can I buy replacement parts and accessories separately?
Yes — we carry replacement parts, mounts, transducers, cables, and accessories for the brands we stock.
3. Do you provide product manuals or installation guides?
Every product ships with the original manufacturer’s manual. Digital copies and detailed installation guides are typically available on the brand’s website.
Warranty & Guarantee
1. Does my purchase include a warranty?
Yes — every order includes the full manufacturer warranty. Coverage length varies by brand (typically 1–3 years for Garmin, Lowrance, Raymarine, Simrad, Humminbird, Furuno, and others).
2. How do I register for warranty coverage?
Register directly with the manufacturer using your unit’s serial number. Manufacturer registration is the fastest path to warranty support if you ever need it.
3. What does the manufacturer warranty cover?
Defects in materials and workmanship under normal use. Damage from impact, improper installation, or saltwater corrosion (without protection) may be excluded. Check brand-specific terms in your unit’s documentation.
4. Can I extend the warranty?
Some manufacturers offer extended-coverage programs through their registration portals. We don’t sell third-party warranty programs.
Purchasing & Support
1. How fast does my order ship?
Orders placed before 4pm EST Monday–Friday ship the same business day via UPS from our NJ or FL warehouses. Continental US delivery typically takes 3–7 business days for Economy.
2. Do you offer bulk or fleet pricing?
Yes — we offer volume pricing for fleet operators, marinas, dealers, and commercial customers. Email support@marineelectronicsdepot.com with your needs.
3. How can I contact support?
Email support@marineelectronicsdepot.com or call during business hours (Mon–Fri 9am–5pm ET). We’re happy to help with pre-purchase questions, order status, or post-sale support.
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