SKU: 58000-400MAR ,

Apollo 58000-400MAR Discovery Marine Heat Detector

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The Apollo Discovery Marine 58000-400MAR is an analogue addressable heat detector, suitable for use on larger vessels. The Apollo Discovery Marine 58000-400MAR uses a single thermistor to sense the air temperature at the detector posistion. The thermistor is connected in a resistor network, which produces a voltage output that is dependent on temperature. The design of the resistor network, together with the processing algorith in the micro-controller, gives the 58000-400MAR an approximately linear characteristic from 10°C to 80°C.

The 58000-400MAR Discovery Marine Heat Detector is suitable for bases 45681-210MAR Discovery Marine Mounting Base and 45681-394MAR Discovery Marine Sounder Visual Indicator Base. For higher water ingress protection, the 45681-217APO Deckhead Mounting Box can be used.

Additional information

Weight1 kg

Discovery Marine

Operating Principle

Temperature-sensitive Resitance

Sensor Type

Single NTC thermistor

Working Voltage

17-28 VDC

Quiescent Current

400 µA

Alarm Current

3.5 mA

Temperature Range

-40°C to +80°C

Relative Humidity

0 to 95% RH

IP Rating



~105 g




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