![Can anyone help me find a smart thermostat compatible with older 3 wire Honeywell EIM? What info do I need to provide? : r/homeautomation Can anyone help me find a smart thermostat compatible with older 3 wire Honeywell EIM? What info do I need to provide? : r/homeautomation](https://preview.redd.it/chegq6bobth71.jpg?width=640&crop=smart&auto=webp&s=8e05d1400d966b3d267ea785bdb9add5f78d5faa)
Can anyone help me find a smart thermostat compatible with older 3 wire Honeywell EIM? What info do I need to provide? : r/homeautomation
![Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit: Amazon.com: Tools & Home Improvement Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit: Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/81vTUBxxwQL._AC_UF1000,1000_QL80_.jpg)
Honeywell YTHX9421R5127WW Prestige IAQ Redlink Internet Gateway Thermostat Kit: Amazon.com: Tools & Home Improvement
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Honeywell Home THM5421R1021 IAQ Equipment Interface Module, Multicolor, Building Supplies - Amazon Canada
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Honeywell YTH6320R1001 Wireless Focuspro Thermostat Kit, Programmable Redlink Enabled, Building Supplies - Amazon Canada
HONEYWELL EQUIPMENT INTERFACE MODULE - Wi-Fi and Wireless Thermostat Connectivity Accessories - WWG3RCP1 | THM4000R1000 - Grainger, Canada
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Honeywell Home FocusPRO Wireless Digital Thermostat Kit [Non-Programmable, Heat/Cool] YTH5320R1000 | PureFilters
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Honeywell YTHX9421R5101WW/U Prestige IAQ Kit with Redlink Technology : Amazon.ca: Tools & Home Improvement
![Honeywell Home THM5421R1021 IAQ Equipment Interface Module, Multicolor - Programmable Household Thermostats - Amazon.com Honeywell Home THM5421R1021 IAQ Equipment Interface Module, Multicolor - Programmable Household Thermostats - Amazon.com](https://m.media-amazon.com/images/I/81l3C9Es33L._AC_UF894,1000_QL80_.jpg)
Honeywell Home THM5421R1021 IAQ Equipment Interface Module, Multicolor - Programmable Household Thermostats - Amazon.com
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Honeywell Home THM5421R1021 IAQ Equipment Interface Module, Multicolor, Building Supplies - Amazon Canada
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TLM1110R1000 Honeywell RedLink Enabled 120V or 240V EIM Interface Relay Module With Antenna - Aartech Canada
![My communicating thermostat has non-standard (proprietary) connectors. Can I install an ecobee thermostat? My communicating thermostat has non-standard (proprietary) connectors. Can I install an ecobee thermostat?](https://storage.googleapis.com/article_attachments/Proprietary%20system_Carrier%20Performance_Proprietary%20connectors_EIM_2.jpeg)
My communicating thermostat has non-standard (proprietary) connectors. Can I install an ecobee thermostat?
![Honeywell Home FocusPRO Wireless Digital Thermostat Kit [Non-Programmable, Heat/Cool] YTH5320R1000 | PureFilters Honeywell Home FocusPRO Wireless Digital Thermostat Kit [Non-Programmable, Heat/Cool] YTH5320R1000 | PureFilters](https://purefilters.ca/cdn/shop/products/YTH5320R1000_3_600x.jpg?v=1668860289)
Honeywell Home FocusPRO Wireless Digital Thermostat Kit [Non-Programmable, Heat/Cool] YTH5320R1000 | PureFilters
![My communicating thermostat has non-standard (proprietary) connectors. Can I install an ecobee thermostat? My communicating thermostat has non-standard (proprietary) connectors. Can I install an ecobee thermostat?](https://storage.googleapis.com/article_attachments/Proprietary%20system_EIM%20board_sandwiched%20between%20proprietary%20thermostat%20and%20HVAC%20control%20board.png)