Electric Underfloor Heating Floor Probe This is a replacement /2nd floor probe from Electric Underfloor Heating Thermostats. CABLE LENGTH 10-ft. / 3 m Can be used with the following thermostats: TH131-AF/F Series TH132-AF/F Series TH232-F/A/AF Series All Heatmiser E Stats 99% of all Electric Underfloor Heating stats in the UK.