Best in 7 days
![Blue Sea 6004200 Single Circuit ON-OFF w/Locking Key - Black [6004200]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/64358XL.jpg?v=1643790265)
![Blue Sea 1821 Universal Temperature Sensor [1821]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/64340XL.jpg?v=1643790167)
Pay in installments of $4.25 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 30 - Jul 5
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Blue Sea 1821 Universal Temperature Sensor [1821]Universal Temperature Sensor Use with the P12 Charger, M2 OLED, and Mini OLED Meters Includes double sided tape Waterproof design Temperature Range: 40F to 300F ( 40C to 150C) Wire Length: 18" WARNING: This product can expose you to chemicals including di(2 ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
Discover Niche Categories That Outsell
Top-Converting Item to Boost Your Average Order
Best in 7 days
![Guest 1.5A Maintainer Charger [2701A]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/63183XL.jpg?v=1643785968)
Best in 7 days
![Blue Sea 6004 Single Circuit ON-OFF w/Locking Key - Red [6004]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/64357XL.jpg?v=1643790251)
Best in 7 days
![Blue Sea 5502100 Class T Fuse Block w/Insulating Cover - 225 to 400A [5502100]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/64355XL.jpg?v=1643790235)
Best in 7 days
4.1 ★★★★★
Based on 865 reviews
Sort
Product Reviews
★★★★★ 5
Asurion gets 5 stars
Asurion tried to repair our printer. And when it was beyond repair they within 24 hours remitted an Amazon gift card enabling us to purchase a new printer we received in 2 days. I highly recommend Asurion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
★★★★★ 5
Better to have then not!
Excellent when you need it! Prompt claim assistance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
★★★★★ 5
Trustworthy
This protection plan is honest and true. I never purchase any electronics without it, not because I don't trust the product, but because anything can happen and ASURION has always come through when I needed them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
excellent insurance and well worth the price
the process was very easy follow the return process return via UPS store very easy to track in about 2 days you will be notified about the decision and if not repairable you will let you know the amount and it will be in your gift car almost immediately great service from starting you claim to end of process
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
★★★★★ 5
Prompt attention and quick refund
Awesome service. Purchased item at the end of 2023 and Asurion quickly, after return, refunded purchase price to my Amazon account. No hassle coverage. Have purchased Asurion on many purchases in the past and will in the future. Worth every penny. Saved a bunch in matters of money, quality, time and convenience.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2025
