Blue Sea Systems 1741 Mini OLED Temperature Monitor
Conveniently monitors temperature on a bright, waterproof, daylight readable OLED screen. Compact size enables mounting in any convenient location (1-1/8 inch hole). reverse Polarity protected. Temperatures range from -40 DegreeC to 125 DegreeC (-40 DegreeF to 250 DegreeF). measures in Fahrenheit or Celsius. Includes submersible temperature sensor.