Honeywell Phenolic Manual Reset Thermostats, 2455RM Series, 2455RM-91470926, Switch Type SPST, Manual Reset, Open on Rise, Contact Type Silver Alloy, Phenolic, 15 A/10 A, B207, T146, Operating Temperature 0 °C to 150 °C [32 °F to 302 °F], Open Temperature 140 °C [284 °F], Close Temperature "Manual Reset", Open Tolerance 5 °C [9 °F], Close Tolerance N/A