Honeywell Ceramic Automatic Reset Thermostats, 2450RC Series, 2450RC-90820307, Switch Type SPST, Automatic Reset, Open on Rise, Contact Type Silver Alloy, Ceramic, 15 A/10 A, B201A, T147, Operating Temperature 0 °C to 260 °C [32 °F to 500 °F], Open Temperature 260 °C [500 °F], Close Temperature 232 °C [449.6 °F], Open Tolerance 11 °C [19.8 °F], Close Tolerance 11 °C [19.8 °F]