What is the operating temperature range for the 2450A Series thermostat?
The 2450A Series thermostat has an operating temperature range of 47°C to 107°C (117°F to 225°F) and an environmental exposure range of 0°C to 150°C (32°F to 302°F). (Page 2)
From the official Honeywell Home Climate Control Thermostat Series 2450A manual, page 2
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