


Blue Sea 1839 M2 OLED Tank Monitor - 1839
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Blue Sea 1839 M2 OLED Tank Monitor - 1839M2 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
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Your Blue Sea 1839 M2 OLED Tank Monitor - 1839 orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 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]
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4.9 ★★★★★
Based on 1159 reviews
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Product Reviews
★★★★★ 5
Get the biggest ones
Size: 2 Pack Pocket Size
It saves my dry mouth. My medications cause dry mouth. I keep one in my purse at all times.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 1
Not worth it for 1/2 oz total liquid and no spray.
Size: 2 Pack Pocket Size
This is a teeny-tiny bottle and it came with no sprayer! Just a screw off lid! Now I have to drive to Kohl's to return it. What a rip-off. There are only two, just 1/4 ounce each. Total deception. Can you tell I'm upset!???
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
★★★★★ 5
Great tart candy for dry mouth!
Flavor Name: Tart Cherry, Size: 3.85 Ounce (Pack of 1)
These are delicious tart cherry candies that help combat dry mouth. They are sugar free and individually wrapped so it’s easy to carry a few around in your pocket or purse.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
★★★★★ 5
These work well
Flavor Name: Tart Cherry, Size: 3.85 Ounce (Pack of 1)
These are a nice alternative to lemon drops. They are a little sour/tart but that’s the point. They taste just like a regular hard piece of candy, without the sugar. They do help my dry mouth and I will purchase them again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 26, 2025
★★★★★ 4
Flavor is pretty good, but could be better
Flavor Name: Tart Cherry, Size: 3.85 Ounce (Pack of 1)
In trying to find a keto candy WITHOUT maltitol, this one is a pretty good one. It’s a great blend of tart and sweet, but I just wish the cherry flavor was more concentrated. The flavor is good- just a little dull. I’ll still rebuy them because they help satisfy my cravings, keep me keto, and don’t give me any stomach issues.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2023
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