The Saunier Duval temperature sensor is suitable for C-CI, MicraCom, Ultracom, Ultracom2, Thema classic, Betacom, Flexicom, Ultimate, Ultra power, Xtrafast, Enviroplus, Thema, Miscellaneous, Isofast, Easicom, Energy, SI, Thema plus, British Gas, Xtramax, and Isomax boilers. The sensor is employed to increase circuit resistance in line with temperature drops.

• Genuine replacement part for Saunier Duval