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Ships within 48 hours · Estimated delivery Oct 20 - Oct 25
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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.
- 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
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4.6 ★★★★★
Based on 2001 reviews
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Product Reviews
★★★★★ 5
Great product!
This was just as expected. I do wish they were a little longer as you can really only use 2 hooks on a panel due to tools touching each other. The product overall is great! It's sturdy and looks awesome!
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Reviewed in the United States on June 9, 2022
★★★★★ 4
Good buy
Size: 21.26in
This one’s a good buy. Great stability during a breezy day. It’s good quality metal, with a good shape helping stability I think. Would’ve given 5 stars if it had 360 wheel turning. I filled with water & 50lbs sand - using a funnel for the sand helped speeding up the sand.
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Reviewed in the United States on May 22, 2026
★★★★★ 5
Versitile system, easy to install.
Good system. No more tools leaning against the garage wall and blocking the door sensor.
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Reviewed in the United States on June 16, 2022
★★★★★ 5
Fits our need perfectly
Replaced our existing tool organizer with this one, which securely holds our tools. Love it!
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Reviewed in the United States on June 16, 2022
★★★★★ 5
Easy to use & provide great light!
I bought two lights for our patio. I love them. They have low and high light settings, which is wonderful. They're easily attached to the umbrella! I was pleased with the quality.
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Reviewed in the United States on June 18, 2025
