Honeywell Phenolic Manual Reset Thermostats, 2455RM Series, 2455RM-90820468, Switch Type SPST, Manual Reset, Open on Rise, Contact Type Silver Alloy, Phenolic, 15 A/10 A, B201A, T147, Operating Temperature 0 °C to 150 °C [32 °F to 302 °F], Open Temperature 70 °C [158 °F], Close Temperature "Manual Reset", Open Tolerance 4 °C [7.2 °F], Close Tolerance N/A