No C Wire Options
Compare no-C-wire smart thermostats by power method: included adapters and extenders, battery power, and the line-voltage systems to rule out.
Sensi ST25W Lite Smart Thermostat, Programmable, WiFi, Easy DIY, Works With Alexa, ENERGY STAR Certified, , Most Systems C-Wire Not Required, C-Wire needed with Heat/Cool Only & Heat Pump System -White
Product details
General specs
- Brand: Sensi
- Model: ST25W
Starting from €80.32
Last price update: 9/25/26
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| Brand | Sensi | Honeywell Home | ecobee | Amazon Renewed | Amazon | Emerson |
| Model | ST25W | S200 TH2110WF4008 | Essential | ST76 | S6ED3R | ST55 |
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| Price | €80.32 | €70.65 | €53.54 | €121.78 | €50.86 | €102.63 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | May 29, 2026 | Jun 24, 2026 | Jun 24, 2026 | May 20, 2026 | Jun 24, 2026 | Jun 24, 2026 |
| Energy Star Certified | Yes | Yes | Yes | |||
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