SKU: 33682535485

Blue Sea 1839 M2 OLED Tank Monitor [1839]

Sale price$142.65 Regular price$158.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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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

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 AC Current Transformer when required
  • Intuitive tank level monitoring
  • Monitor up to 4 tanks
  • Auto calibration for unique tank shapes
  • Compatible with common sending units


Specifications:
  • Meter: Tank
  • Function: Monitors tank volume in up to 4 tanks
  • Resolution: 1%
  • Display Size: 55mm x 28mm
  • Input Voltage: 7-70V DC - Variable with voltage, display intensity, and sleep mode
  • Range: 0.3W-1.0W
  • Tank Alarms: 80dB
  • Tank Shapes: Custom shapes, auto calibration
  • Weight: 0.25lb (0.11 kg)

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:
  1. 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
SKU: 33682535485

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4.3 ★★★★★
Based on 14 reviews
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Amazon Customer
Grantham, US
★★★★★ 5
Very comfortable women's cotton boxers
Size: 12, Color: White Pack
These Comfort Choice women's boxers are comfortable and made of soft cotton. They are not bulky. On me, I,'m 5'2", they come down to about 2" from my knee. I wear them from fall through the winter. They give that little extra layered feeling. The legs stay down.I weigh 259 and wear size 13.
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Reviewed in the United States on January 17, 2026
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Neicy
Whiting, US
★★★★★ 1
Product quality unpredictable.
Size: 12, Color: Vibrant Blue Pack
Disappointed in this purchase. I have purchased this type of shorts for sleep wear in the past and enjoyed them but the quality, fit and sizing has become increasingly unpredictable. This batch is so bad they fall off while I am sleeping anytime I turn in the bed the item slips off of my body. The elastic is so tiny it can't adhere to my shape. It cost too much to return the item so I am using it till I find a replacement.
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Reviewed in the United States on September 2, 2025
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Amazon Customer
West Palm Beach, US
★★★★★ 5
ladies' boxers are great
Size: 11, Color: Floral Hearts Pack
Practical and comfortable!
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Reviewed in the United States on April 4, 2025
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Cindy B.
Alexandria, US
★★★★★ 3
Soft, but too short for my long legs
Size: 10, Color: Basic Pack
These are soft, but much too short in the legs, so that I have to continuously pull the legs back down out of the crease between my upper thighs where it creeps up into the crease btwn the thigh and stomach. If they were about 4-5" longer they would be a 5☆ rating for me.
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Reviewed in the United States on August 23, 2025
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sandy
Chelsea, US
★★★★★ 5
Great for my mom
Size: 11, Color: White Pack
Fits well. Mom loved them
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Reviewed in the United States on March 7, 2024

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