Honeywell Ceramic Automatic Reset Thermostats, 2455RC Series, 2455RC-00980620, Switch Type SPST, Automatic Reset, Open on Rise, Contact Type Silver Alloy, Ceramic, 15 A/10 A, B203S, T147, Operating Temperature 0 °C to 260 °C [32 °F to 500 °F], Open Temperature 110 °C [230 °F], Close Temperature 75 °C [167 °F], Open Tolerance 5 °C [9 °F], Close Tolerance 7 °C [12.6 °F]