A manual thermostat is a device used to regulate the temperature of a room or space. It is typically used in conjunction with a heating or cooling system, such as a furnace or air conditioner, to ensure that the temperature remains within a certain range. Manual thermostats are often used in residential and commercial buildings to maintain a comfortable environment for occupants. Manual thermostats typically consist of a dial or switch that can be adjusted to the desired temperature. When the temperature in the room or space rises above or falls below the set temperature, the thermostat will activate the heating or cooling system to bring the temperature back to the desired level. Manual thermostats are a simple and cost-effective way to regulate the temperature in a space, and are a great option for those who want to maintain a comfortable environment without the need for a more expensive automated system.