Alarm.com Z-Wave Capacitive Touch Smart Thermostat ADC-T25
Comfort without the C-wire.
The Alarm.com ADC-T25 is a Z-Wave smart thermostat with an OLED touch display. It runs on 24 VAC or four AA batteries, so no C-wire is required.

Not every wall has a C-wire.
Many thermostat upgrades stall when the wiring doesn't offer a common wire. The ADC-T25 can run on 24 VAC or four (4) AA batteries, so power is not a blocker.
Built for real HVAC systems
The ADC-T25 pairs a touch display with broad system support for installers and homeowners.
OLED touch display
A capacitive touch interface on an OLED display puts temperature control right on the wall.

Heat and cool stages
Handles up to 3 stages of heat and 2 stages of cool.
Z-Wave connectivity
Communication supports Z-Wave SmartStart, Z-Wave S2, and Z-Wave Long Range.
Universal 24VAC support
Works with forced air, heat pump (O/B), radiant, and dual fuel systems.
Humidity and ventilation
Includes humidity control and supports HRV, ERV, and an external air baffle via the Z-terminal.
Everything you need to know.
| Brand | Alarm.com |
| Model | Z-Wave |
| Display | OLED touch display |
| Power | 24 VAC / four (4) AA batteries (No C-wire required) |
| Dimensions (H x W x D) | 4.7" x 4.7" x 1" (12 x 12 x 2.6cm) |
| Operating Temperature | 41°F to 95°F (5°C to 35°C) |
| Communication | Z-Wave SmartStart, Z-Wave S2, Z-Wave Long Range |
| Stages | Up to 3 stages of heat and 2 stages of cool |
| Humidity Control | Yes |
| Ventilation Control | Supports HRV, ERV, and external air baffle (via Z-terminal) |
Alarm.com Z-Wave Capacitive Touch Smart Thermostat ADC-T25
The Alarm.com ADC-T25 is a smart Thermostat: Z-Wave Capacitive Touch Smart Thermostat. It is aimed at security installers, integrators and property owners who want a genuine Alarm.com device for a new system, an expansion or a replacement.
Key Features
- Display: OLED touch display
- Power: 24 VAC / four (4) AA batteries (No C-wire required)
- Dimensions (H x W x D): 4.7" x 4.7" x 1" (12 x 12 x 2.6cm)
- Operating Temperature: 41°F to 95°F (5°C to 35°C)
- Communication: Z-Wave SmartStart, Z-Wave S2, Z-Wave Long Range
- HVAC Compatibility: Universal 24VAC systems including forced air, heat pump (O/B), radiant, and dual fuel
- Stages: Up to 3 stages of heat and 2 stages of cool
- Humidity Control: Yes
- Ventilation Control: Supports HRV, ERV, and external air baffle (via Z-terminal)
- Included Accessories: Thermostat, trim plate, screws and anchors, user guide, four (4) AA batteries
Specifications
- Brand: Alarm.com
- Model: ADC-T25
- Z-Wave: Yes
- Shipping weight: 1 lb
Typical Uses
- Heating and cooling control in homes and small businesses
- Smart-home and security-system energy management
Alarm.com devices require an active Alarm.com service account through an authorised dealer; please confirm compatibility with your existing panel, cameras and service plan before ordering. Install the ADC-T25 according to the manufacturer's instructions and local codes, and contact us with your existing equipment models if you need help.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

Alarm.com Z-Wave, ready to order.
- Thermostat
- Trim plate
- Screws and anchors
- User guide
- Four (4) AA batteries
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