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SecuriSens® ADW 535

The SecuriSens® ADW 511A is a linear rate-of-rise and maximum temperature detector and works on the principle of the change in volume of gases when there is a change in temperature. It consists of a copper sensor tube of up to 130m in length (stainless steel or Teflon tubes are available for use in particularly difficult environmental conditions, available upon request) and a detector case. Pressure is artificially created in the sensor tube, with a fully electronic pressure sensor constantly measuring the absolute pressure in the tube, with a microprocessor carrying out the evaluation.