Smart Thermostat HONEYWELL ElitePRO S1200 THX1200W5/U | Montreal, Laval, Longueuil, South Shore & North Shore

The doorbell rings while you're making supper upstairs. Instead of going downstairs or looking for your phone, you glance at the hallway thermostat: your video doorbell's image appears on it. That's one of the distinctive features of the Honeywell ElitePRO S1200 white THX1200W5/U smart thermostat, the most complete model in the ElitePRO lineup. It streams live video from First Alert and Ring doorbells on its 5 in. colour touchscreen, while controlling your furnace, your central heat pump and your air quality equipment.

Home comfort and the front door on one screen

The doorbell video feature turns the thermostat into a small home control station. The screen, ideally placed in a high-traffic area, lets you see who's at the door without stopping what you're doing. For families with young children, seniors or people who work from home, it's a real gain in comfort. Compatibility is limited to First Alert and Ring video doorbells.

Air quality under watch

Like the S1100, the S1200 measures humidity, volatile organic compounds (VOCs) and an estimated CO2 level. It controls up to two air quality devices through configurable outputs: an air exchanger, a humidifier or a dehumidifier. Air quality notifications in the First Alert app let you know when action is advisable, for example more ventilation after an evening with friends in the middle of winter.

Priority to occupied rooms

With RedLINK 3.0 technology, the S1200 accepts C7189R3010-2 room sensors and a C7089R3013 outdoor sensor, sold separately with this model, as well as the EIM4010 interface module. Room sensors let you prioritize occupied rooms. Built-in occupancy detection drives Smart Away mode, and time-based scheduling remains available. If you want a room sensor from day one, the YTHX1200W5/U kit combines the thermostat and a RedLINK 3.0 sensor.

Compatibility with your systems

The S1200 controls 24 VAC forced-air systems running on gas, oil or electricity, hydronic systems, fan coils, PTAC units, dual energy and radiant heat. On a heat pump, it handles 3 heating and 2 cooling stages, up to 4 heating stages with the U/L terminals or an EIM. On a conventional system, it supports multiple stages; our technicians confirm the exact configuration for your equipment before installation. This low-voltage thermostat does not control 120/240 V electric baseboard heaters.

A complete connected ecosystem

The S1200 connects over dual-band 2.4 / 5 GHz Wi-Fi and supports Matter. It works with Google Home, Amazon Alexa and Apple Home. The First Alert app brings together remote control, schedules, energy use alerts, filter reminders and air quality notifications. It is compatible with demand response programs.

A customizable, bilingual screen

The 5 in. screen can be customized (screen savers, colours, styles) and displays in French, English or Spanish. The white housing, at 133 x 90 x 24 mm, stays discreet on a light-coloured wall, while the colour screen catches the eye when needed.

Saving in winter without thinking about it

The S1200 is ENERGY STAR certified according to the manufacturer. During the heating season, Smart Away and room priority avoid heating the whole house to the same level when only a few rooms are occupied. With dual energy, multi-stage control lets the heat pump handle most of the heating and keeps backup heat for the periods when it's needed.

Installation: C wire required

The S1200 requires wired 20 to 30 VAC power with a common wire (C wire). It comes with the UWP wall plate, a cover plate with electrical box adapter, hardware and documentation. Our technicians proceed as follows:

1. Check the wiring and add a C wire if needed.
2. Install and configure the stages, dual energy and air quality equipment.
3. Connect to Wi-Fi and the First Alert app.
4. Pair your compatible First Alert or Ring video doorbell, when it is already installed and working.
5. Test and explain the main functions.

The location deserves some thought: it must suit temperature measurement, away from direct sun and heat sources, but also viewing the screen for doorbell video.

The top of the ElitePRO lineup

The S900 covers the essentials, the S1000 adds RedLINK and two air quality devices, and the S1100 moves up to the 5 in. screen and VOC and estimated CO2 monitoring. The S1200 includes all of that and adds doorbell video. If you already own a First Alert or Ring doorbell, this is the model that gets the most out of your connected home. A black version (THX1200B6/U) is also available.

Maintenance

Clean the screen with a soft, dry cloth. Keep the thermostat away from aerosols and steam sources for reliable air quality readings. Follow the filter reminders and have your furnace or heat pump serviced every year.

Technical specifications

• Stages: 3H/2C heat pump, up to 4H/2C with the U/L terminals or an EIM; multi-stage conventional (configuration confirmed at installation)
• Systems: 24 VAC gas, oil or electric forced air, hydronic, fan coils, PTAC, dual energy, radiant
• Power: 20 to 30 VAC, wired, C wire required
• Screen: customizable 5 in. colour touchscreen; live video from First Alert and Ring doorbells
• Connectivity: dual-band 2.4 / 5 GHz Wi-Fi, RedLINK 3.0, Matter; First Alert app
• Ecosystems: Google Home, Amazon Alexa, Apple Home
• Built-in sensors: humidity, VOCs, estimated CO2, occupancy detection
• Compatible accessories: C7189R3010-2 room sensors, C7089R3013 outdoor sensor, EIM4010 module (sold separately)
• Air quality: up to 2 devices with configurable outputs
• Demand response: compatible
• Display languages: French, English, Spanish
• Dimensions: 133 x 90 x 24 mm (5.25 x 3.54 x 0.96 in.)
• Colour: white
• Contents: thermostat, UWP plate, cover plate with adapter, hardware, documentation
• Certification: ENERGY STAR

The ElitePRO S1200 installed by AirGreen

AirGreen Inc. is a family air conditioning and heating business with more than 15 years of experience, an RBQ licence and a showroom in Boucherville. For the sale and professional installation of the white ElitePRO S1200, contact AirGreen. We serve Montréal, Laval, Longueuil, the North Shore and the South Shore.