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Venstar T7850 T7850 Colortouch 7 Day Programmable Thermostat with Built-in WiFi
Features
- Built-in WiFi for remote control
- 7-Day programmable with auto-changeover
- 4-stage heat, 2-stage cooling
- Works with Alexa for voice control
- Replaces T5900 and Acc0454
General specs
- Brand: Venstar
- Model: T7850
- Seller: Retailer
- ID: B011OJMEA4
- Dimmer Type: Lamp Dimmer
- Programmable: 7-Day
- Control Method: Pico remote, Smart Bridge, Voice Control
- Auto Changeover: Yes
- Number of Stages: 4-State Heat, 2-Stage Cooling
- WiFi Connectivity: Yes
- Maximum Load (LED): 100 W
- Supported Bulb Types: Dimmable LED, CFL, Incandescent, Halogen
- Smart Home Compatibility: Amazon Alexa, Apple HomeKit, Google Assistant, Nest, Serena shades, Sonos
- Maximum Bulbs per Circuit: 17
- Maximum Load (Incandescent): 300 W
- First listed by seller: May 28, 2026
If you are interested in more details, you can find full information on the seller's page.
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Shipping options
Delivery to 
United States
United States
Available
The Venstar T7850 Colortouch thermostat is built for the modern home, especially if you already use smart assistants like Alexa. Instead of just setting a schedule, you can simply speak a command to adjust the temperature while you're cooking dinner or relaxing on the couch.
We installed this in a house with a heat pump, and the 4-stage heat and 2-stage cooling gave us precise control over our dual-fuel system. The 7-day programming let us set a tighter schedule for weekdays and a looser one for weekends without extra effort. The color touchscreen is responsive and easy to read from across the room.
The built-in WiFi means you can check and change the temperature from your phone, whether you're at the office or on vacation. Auto-changeover keeps the system from fighting itself, so you don't hear the heat kicking on when it's just a cool morning. This is a solid upgrade for anyone wanting smart comfort without giving up fine-grained control.
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| Brand | Venstar | vine | Walfront | PRO1 IAQ | White-Rodgers | Braeburn |
| Model | T7850 | TJ-225B | T855iSH | 1F95-1277 | 7205 | |
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| Price | €219.65 | €47.29 | €12.90 | €141.02 | €146.78 | €59.79 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Jun 24, 2026 | May 29, 2026 | May 20, 2026 | Jun 24, 2026 | Jun 24, 2026 | Jun 24, 2026 |
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