Therm-O-Disc Furnace Limit Switch 610009- TOD 60T 11 L150-40F Precise temperature control: The limit switch thermostat uses advanced temperature control technology to accurately control the temperature of the furnace. It turns on when the temperature rises (150 degrees) and turns off when the temperature drops (to 110 degrees), ensuring that the furnace operates stably within a specific temperature range. It is a very important safety device on the furnace. High quality: The L150-40F thermostat is made of high-quality materials to ensure that the switch is responsive, durable, not easy to deform and damage, and has been strictly tested by the manufacturer to ensure performance and extend the service life of the product. You can buy it with confidence. Safe and reliable: The furnace limit switch can ensure that the power supply is cut off in time when the furnace temperature is too high to prevent safety problems such as fire. It can also work normally under extreme temperatures and is more reliable. EASY TO INSTALL: The L150-40F limit switch thermostat is designed to be simple, when your furnace is too hot or too cold, you just need to replace the control thermostat. Installing the limit switch is easy for any DIY handyman, no complex tools or professional skills are required. It only takes a few minutes to complete the installation, saving you time and money. 20% RESTOCKING FEES AND SHIPPING WILL BE CHARGED. IF ITEM IS FUNTIONAL OR INCOMPLETE. Your feedback is extremely important to us! If you are satisfied with our service please take the time to give us positive feedback. We tremendously appreciate it! We strive for your complete satisfaction. Likewise, if you have any issues, please contact us first, and we promise we will do our best to satisfy your needs and solve the problem. If we resolve your problem, we kindly ask you to still leave us positive feedback. Your kindness will be extremely appreciated!