Honeywell Ceramic Manual Reset Thermostats, 2450CMG Series, 2450CMG79100001, Switch Type SPST, Manual Reset, Open on Rise, Contact Type Gold Alloy, Ceramic, 0.5 A, B202, T148, Operating Temperature 52 °C to 232 °C [125 °F to 450 °F], Open Temperature 87.78 °C [190 °F], Close Temperature "Manual Reset", Open Tolerance 6.11 °C [11 °F], Close Tolerance N/A