Blue Sea 1839 M2 OLED Tank Monitor

$ 300.64 $ 334.04
FREE Shipping


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.


- 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


- 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
1 Year Warranty