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![Blue Sea 1839 M2 OLED Tank Monitor [1839]](https://cdn.shopify.com/s/files/1/0405/8454/4408/products/64341XL.jpg?v=1591322113)
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Ships within 48 hours · Estimated delivery Jun 27 - Jul 2
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Description
Blue Sea 1839 M2 OLED Tank Monitor [1839]M2 OLED Tank Monitor The M2 Organic LED Digital Monitor measures essential electrical system parameters with adjustable alarms and an auto dimming display. The M2 Monitors include a MOSFET External Circuit Relay (ECR) which can be used to control external circuits based on any value measured by the M2. Features: Auto dimming, bright Organic LED display is easy to read 80dB alarm on all models Isolated 500mA MOSFET relay Includes external DC Shunt or
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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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
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Best in 7 days
4.8 ★★★★★
Based on 1562 reviews
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Product Reviews
★★★★★ 5
Perfect
Size: 0GA-0GA 2PCS
I was looking for these entirely everywhere and when I got them my amp had perfect contraction and now my bass is perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2025
★★★★★ 5
Good quality
Size: 2 Channel-9 ft
Works as expected, good quality for the price point.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
Works as intended
Size: 1-Female to 2-Male Y-Adapter-1 ft
What can I say? Works as intended. Seems pretty decent in quality and has a decent thickness to it! Fits pretty tightly so you don't have to worry about sloppy RCA connections.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
Great Quality
Size: 2 Channel-3 ft, Size: 2 Channel-3 ft
Outstanding quality a very reasonable price. I was able to check the headunit RCA was showing almost 5 volts which was rated on the output of the headunit. I’m not an expert however i am assuming you don’t have to add so much gain. I’m very pleased and i will save this seller.
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Pretty good cables for what they are
Size: 2 Channel-3 ft
I purchased these Skar Audio cables here on Amazon because they were an outstanding price. They shipped very quickly. When I open the package mind you they do work pretty good but when I open the package I've noticed that the gold plated connecting points that are supposed to connect to your amplifier and your receiver are a little flimsy and don't fit as tight as they're supposed to so I was concerned that bumps on the road whatever would cause them to loosen up so I had to squeeze them together a little bit so I can make them fit tighter on the amplifier but so far so good and I've had no problems with them. I've had no weird humming no weird crackling or any kind of connection issues whatsoever since I've done this. Just something to take note. Other than that, for the price these are pretty good cables and if you want to spend a little more here on Amazon you can get better cables. I know Skar Audio makes pretty good speakers for what they're worth and they definitely make pretty decent amps. I'm just not quite sure about there quality on cables and such. Just my honest opinion. I know people that love everything that they make so it's all subjective and a matter of opinion. Would I recommend them? For the price definitely.
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Reviewed in the United States on November 13, 2023
