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Overview
The Ideal ST9 sensor offers compatibility with a wide range of Ideal super and super plus commercial boilers. The thermistor decreases circuit resistance in line with temperature increases. A boiler's printed circuit board (PCB) sends a current to the thermistor, deciding whether a decrease or increase in heat is required by reading the relative resistance.
- Comes with lead attached
Technical specification
TypeThermistorManufacturer Model No13755Brand NameIdeal Heating
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