![Trying to replace this old 2 wire thermostat for a newer digital one. Problem is older unit does not have leads labeled or which cable is which. Any help on how to Trying to replace this old 2 wire thermostat for a newer digital one. Problem is older unit does not have leads labeled or which cable is which. Any help on how to](https://i.redd.it/j9mnonzn7nu91.jpg)
Trying to replace this old 2 wire thermostat for a newer digital one. Problem is older unit does not have leads labeled or which cable is which. Any help on how to
![2 to 8 Wire All Thermostats Wiring Diagrams (Honeywell, Nest) | Thermostat wiring, Thermostat, Electrical diagram 2 to 8 Wire All Thermostats Wiring Diagrams (Honeywell, Nest) | Thermostat wiring, Thermostat, Electrical diagram](https://i.pinimg.com/736x/45/2d/cd/452dcd199d840f3929b6b52f03c0481b.jpg)
2 to 8 Wire All Thermostats Wiring Diagrams (Honeywell, Nest) | Thermostat wiring, Thermostat, Electrical diagram
![Honeywell Home 5-2 Day Programmable Thermostat with Digital Backlit Display RTH2300B - The Home Depot Honeywell Home 5-2 Day Programmable Thermostat with Digital Backlit Display RTH2300B - The Home Depot](https://images.thdstatic.com/productImages/5ad47bd4-807f-4f84-8db3-5f2472f78bc5/svn/honeywell-home-programmable-thermostats-rth2300b-64_300.jpg)
Honeywell Home 5-2 Day Programmable Thermostat with Digital Backlit Display RTH2300B - The Home Depot
![Honeywell Home T4 24-Volt 5-2 Day Touch Screen Programmable Thermostat in the Programmable Thermostats department at Lowes.com Honeywell Home T4 24-Volt 5-2 Day Touch Screen Programmable Thermostat in the Programmable Thermostats department at Lowes.com](https://mobileimages.lowes.com/productimages/82e4228a-8af9-4a75-a215-849b8a4c96c9/61054753.jpg?size=pdhism)
Honeywell Home T4 24-Volt 5-2 Day Touch Screen Programmable Thermostat in the Programmable Thermostats department at Lowes.com
![Amazon.com: BioGreen TER2/US Thermo 2 Digital Greenhouse Thermostat with Summer/Winter Function 2 Years Warrenty : Industrial & Scientific Amazon.com: BioGreen TER2/US Thermo 2 Digital Greenhouse Thermostat with Summer/Winter Function 2 Years Warrenty : Industrial & Scientific](https://m.media-amazon.com/images/I/71aKE68o3eL.jpg)
Amazon.com: BioGreen TER2/US Thermo 2 Digital Greenhouse Thermostat with Summer/Winter Function 2 Years Warrenty : Industrial & Scientific
![Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, Programmable, Wi-Fi, Data Privacy, Mobile App, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required, New for 2023 - Amazon.com Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, Programmable, Wi-Fi, Data Privacy, Mobile App, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required, New for 2023 - Amazon.com](https://m.media-amazon.com/images/I/51Ceejf+6kL.jpg)
Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, Programmable, Wi-Fi, Data Privacy, Mobile App, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required, New for 2023 - Amazon.com
![Honeywell T6 Pro Programmable/Non-Programmable Thermostat (Heat Pump: 3 Heat/2 Cool - Conventional: 2 Heat/2 Cool) Honeywell T6 Pro Programmable/Non-Programmable Thermostat (Heat Pump: 3 Heat/2 Cool - Conventional: 2 Heat/2 Cool)](https://www.nationalairwarehouse.com/wp-content/uploads/2022/11/th6320u2008.jpg)