Blue Sea Systems 1839 M2 OLED Tank Monitor - 4 Tank Capacity

The Blue Sea Systems 1839 M2 OLED Tank Monitor provides precise digital monitoring of up to four tanks with an easy-to-read organic LED display and customizable alarm settings. This advanced monitoring system measures essential tank levels with 1% resolution and features auto-dimming technology for optimal visibility in any lighting condition.

Key Features:

• Auto-dimming bright OLED display for easy reading in all conditions
• Monitor up to 4 tanks simultaneously with intuitive level display
• Auto-calibration capability accommodates unique tank shapes
• Compatible with common sending units for flexible installation
• 80dB audible alarm alerts on all models
• Isolated 500mA MOSFET relay for external circuit control
• Wide input voltage range: 7-70V DC
• Low power consumption: 0.3W-1.0W

Technical Specifications:

• Display Size: 55mm x 28mm
• Resolution: 1% tank level accuracy
• Power Range: 0.3W-1.0W (variable with voltage, display intensity, and sleep mode)
• Includes external DC Shunt or AC Current Transformer when required
• Weight: 0.25 lbs (0.11 kg)

The M2 Tank Monitor includes a MOSFET External Circuit Relay (ECR) that can be programmed to control external circuits based on any measured value, providing automated control capabilities for pumps, alarms, or other equipment. The custom shape calibration feature ensures accurate readings regardless of tank geometry, making it ideal for marine, RV, and other mobile applications.

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.