Blue Sea 1820 Submersible Temperature Sensor

⚓ Smooth Sailing Shipping

Enjoy FREE standard shipping on most orders over $250 within the continental U.S. (excl. heavy/oversized/hazardous items).

We ship via UPS, FedEx, and USPS . Orders are processed in 1–2 business days with typical delivery in 1–5 business days .

🧭 Track The Voyage

You’ll receive tracking info by email once your order ships. If your package is marked “delivered” but not received, please wait 48 hours then reach out to our team.

🛟 Hassle-Free Returns & Exchanges

Returns accepted within 30 days of delivery. Items must be unused and in original packaging.

• Mistaken or damaged cargo? We’ll handle return shipping.
• Changed your course? Return shipping is on you.
• Report defects or damage within 7 days for a free exchange.

💰 Anchor Your Refund

Refunds go back to your original payment method within 5–7 business days after inspection.

📨 Contact the Crew

Questions about your order? Drop anchor at sales@marineelec.com .