Blue Sea 1839 M2 OLED Tank Monitor

M2 OLED Tank MonitorThe 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