Bought new at estate sale..  opened box to verify item was inside, it is still in Sealed plastic box

The Johnson Controls T-4002-201 is a direct acting single temperature horizontal thermostat designed for HVAC and refrigeration systems. This product from Johnson Controls is known for its reliable performance and energy-efficient control of heating and cooling systems. With its model number T-4002-201, this thermostat is a popular choice among professionals in the HVAC industry for regulating temperature in various settings.