Aqara Dual Relay Module T2
$54.00
Overview
- Type: Smart Switch Module
- With Neutral
- Dual-channel control
- Protocol: Zigbee
- Requires Aqara Hub: Yes
- Colour: White
- Input: 100-250VAC,50/60Hz, MAX 10A
- Rated Load: Max 2500W (Incandescent Lamp)
- Dimension: 45.5 × 48 × 24 mm compact size
Warranty:
- Installation: Excluded
- Warranty: 2 years (Refer to Warranty Policy)
Turn wired control into wireless & smart
The Aqara Dual Relay Module T2 utilizes Zigbee technology to manage power, controlling the on and off functions of various devices. It can manage a range of devices including motors, roller blinds, lights, switches, garage doors, and sockets in two modes: dry contact and wet contact. With an Aqara hub, features such as app-based remote control, timing control, and power consumption statistics can be implemented.
Unleash the potential of your existing devices.
Automatic control of roller blinds, curtain motors, garage doors, awnings, gates, electric sliding doors, pool covers, and two-way AC motors is now possible. By repurposing existing equipment in your home, you can seamlessly achieve enhanced vitality and intelligence. The retrofitting of old equipment no longer needs to be a costly and time-consuming process. Modernizing traditional equipment can pave the way to a new smart living experience.
Dual Relay Module T2
Live smart without replacing your original equipment.
Enhanced Compatibility
After connecting to an Aqara hub, the T2 offers compatibility with various platforms, including HomeKit, Alexa, Google Home, IFTTT, and Matter. It allows traditional devices to become smart and seamlessly integrates them with multiple third-party systems. Forget about the limitations of different protocols and platforms and enjoy a seamless and harmonious smart home experience.
* Aqara Zigbee 3.0 hub is required, and a Matter-compatible Aqara hub is required for Matter support. **Home Assistant is supported via Aqara hub using HomeKit Controller and Matter integrations. *** Please note: Convert to Wireless Switch mode, Energy Monitoring and Power Automations are only available on Aqara Home app and are not exposed to third-party ecosystems.
Making the existing devices smart
Transforming conventional devices into smart devices, including roller blinds, curtain motors, garage doors, awnings, gates, and electric sliding doors. Automations and scenes that can be triggered by:
Unleash the Potential of Existing Devices
The T2 supports dual modes of dry contact and wet contact. In dry contact mode, the open and close pulse signal or the on-off signal can be selected to control motors, garage doors, rolling gates and other equipment. In wet contact mode, intelligent light control can be easily utilized without replacing your original equipment. By disconnecting a red jumper wire, the T2 can be switched from Wet Contact to Dry Contact Mode, which allows you to integrate a variety of devices.
Interlock and Motor Control
Utilizing the interlock mode, the T2 allows users to effortlessly and securely connect it to bi-directional motors*. Now, it can effectively control tubular motors, work as a roller shade switch, and be the central part of your water leak protection system.
Convert to Wireless Switch Mode
Easily turn an existing wall switch into a wireless scene controller that doesn't need to change the batteries. For example, an arm button for your security system or a wired doorbell. Alternatively, you can connect one or two binary sensors*, and use the T2 in automations.

Smart doorbell
Wired doorbell + T2
=
Smart doorbell

Smart switch
Ordinary switch + T2
=
Smart switch
Safety is Fundamental
The T2 supports overheat and overload protection, which can eliminate the high current shock when the electrical equipment is instantly powered on, thereby ensuring the reliability and longevity of the equipment. When the equipment temperature is abnormal, or the power exceeds 2500W, the device automatically powers off to ensure electrical safety.*
Power Off Memory and Energy Monitoring
The T2 comes equipped with a power off memory, which enables the device to remember its last state, in order not to turn the light on suddenly at night in case of a power cut.
T2 also features an electricity consumption monitoring function, which duplicate themselves, which enables an easy reset of the device automation, thus easing concerns regarding sudden power cuts or device resets.
Low Idle Consumption
Thanks to Zigbee wireless protocol, the Relay T2 features an ultra-low idle consumption. In a few years, the total cost of usage for a competing Wi-Fi relay, may surpass one of the Relay T2 significantly.
Aqara Dual Relay Module T2 vs Other Brands
Flexible Installation
The small size* T2 can be installed near light, behind switch or wall outlet and it also includes a DIN rail energy monitor**. Moreover, it is also compatible with both AC and DC power, This feature offers versatility, allowing users to install the device different settings and power sources.

86mm wall box

EU wall box

DIN Rail
*A wall box with a depth of about 60 mm is recommended. In case the existing wall box is not deep enough, you can try to use a Wireless Remote Switch H1, or a surface-mounted or ultra-thin wall switch to control the Relay.
**The Relay T2 is not a circuit breaker, and its maximum current of 10A does not allow it to control a big part of household circuits.
Garage door controller
Thanks to the dry-contact mode, the Relay T2 can be used to make your existing garage door smart*.
IF You arrive within 500 meters from your home
THEN Open the garage door
Save energy by using the T2 to control the boilers
Make your boiler smart with the T2. Control it remotely and save energy by integrating it with Radiator Thermostats through Aqara Home or third-party automations.
IF All the Radiator Thermostats are off
THEN Turn off the boiler
Install it Behind Wall Switches and Outlets
IF Presence is detected
THEN Turn on a light switch or a heater connected to the outlet
How can it be properly utilized?
Dry Contact Mode
1. Garage Door Controllers*/Arm Barriers other devices controllable by dry contacts: the relay is controlling the existing motor using the wall button contacts (COM+OP/CS/O/S/C)
Other dry contact use cases:
2. Arm Barriers etc. Other devices controllable by dry contacts can be wired similarly to a garage door controller
3. Boilers: in this case, the relay is used as a thermostat for boilers. For example, it can switch the boiler off in case nobody is detected at home.
4. Make an Existing Appliance Smart: the dry contact can "press" the button of an existing appliance, such as a coffee machine, air freshener etc.
Wet Contact Mode :
1. Smart Outlet: the load is connected directly to the relay. The relay acts as a simple on/off switch.
2. Electric Floor Heating: similar to 1, but now the relay acts as a thermostat. Configuring the automations with a temperature sensor is suggested.
3. Smart Light Switch: in this case, the relay can be installed behind the existing wall switch, that controls light(s), fan(s) etc. 2-way (3-way) switching: you can also connect two or more switches in multi-way configuration, and all of them will be able to control the lights connected to the Relay T2.
4. Smart Roller Shade Switch: The relay can be installed behind the existing Roller Shade Switch and control the existing non-smart roller shade motor.
Wireless Switch Use Cases :
The relay can also be used as a wireless switch that does not require replacing the batteries. (the Convert to Wireless Switch setting should be enabled in the app) 1. Connect an existing wired 1-2-channel wall switch and use it as a wireless switch 2. Alternatively, you can connect one or two binary sensors* instead, and use the relay in automations
* Please note: the wireless switch mode requires the Relay to be powered by AC or >85V AC
|
Function |
Dual Relay Module T2 |
Single Switch Module T1 |
|---|---|---|
|
Model |
DCM-K01 |
SSM-U02 (No Neutral) / SSM-U01 (With Neutral) |
| With Neutral |
Yes |
Yes/No |
| Protocol |
Zigbee |
Zigbee |
|
Requires Aqara Hub |
Yes |
Yes |
|
Rated Load (Max) |
Max 2500W (resistive load) |
Max 1250W (resistive load) – No Neutral Max 2500W (resistive load) – With Neutral |
|
Current (Max) |
10A |
5A - No Neutral 10A – With Neutral |
|
Input Voltage |
100-250VAC, 50/60Hz |
100-250VAC, 50/60Hz |
|
Dimensions |
45.5 × 48 × 24 mm |
42.9×40×21.4mm - No Neutral 42.9 ×40 ×19.9 mm – With Neutral |
|
Control Channels |
Dual (can control two devices independently) |
Single (controls one device) |
|
Modes Supported |
Dry contact, Wet contact |
Wet contact |
|
Applications |
Lights, motors, garage doors, roller blinds |
Lights, fans, and other home appliances (that require a direct electrical connection) |
|
Voice Assistant Compatibility |
Apple HomeKit, Google Home, Amazon Alexa |
Apple HomeKit, Google Home, Amazon Alexa |
|
Safety Features |
Overheat and overload protection | Overheat and overload protection (Overload protection is supported by T1 With Neutral only) |
Product Specification
| DCM-K01 | |
| Zigbee | |
Dimension | 45.5 × 48 × 24 mm |
| Operating Temperature | -10 °C ~ 40 °C |
| Operating Humidity | 0 ~ 95% RH, no condensation |
| Zigbee Operation Frequency | 2405-2475 MHz |

