Honeywell Ceramic Automatic Reset Thermostats, 2450RC Series, 2450RC-99900908, Switch Type SPST, Automatic Reset, Open on Rise, Contact Type Silver Alloy, Ceramic, 15 A/10 A, B205A, T806, Operating Temperature 0 °C to 260 °C [32 °F to 500 °F], Open Temperature 170 °C [338 °F], Close Temperature 140 °C [284 °F], Open Tolerance 6 °C [10.8 °F], Close Tolerance 8 °C [14.4 °F]