Honeywell Ceramic Automatic Reset Thermostats, 3450RCG Series, 3450RCG82700033, Switch Type SPST, Automatic Reset, Open on Rise, Contact Type Gold Alloy, Ceramic, 0.5 A, B240, T149, Operating Temperature 0 °C to 260 °C [32 °F to 500 °F], Open Temperature 260 °C [500 °F], Close Temperature 200 °C [392 °F], Open Tolerance 13.89 °C [25 °F], Close Tolerance 13.89 °C [25 °F]