Aqara
Aqara Dual Relay Module T2
- Zigbee
Verified September 2026
A 2-gang Zigbee 3.0 relay (model LLKZMK12LM) with per-relay dry-contact mode, which is the detail that matters: it can pulse-switch a garage door opener or a boiler/valve circuit instead of just holding a load on/off, and both relays are independently exposed in Zigbee2MQTT and ZHA. The catch is the combined 10A rating across both channels — fine for lighting or a boiler relay, not enough for anything like a washing machine circuit. Requires a neutral wire; Aqara markets it as needing their own hub, but it's standard Zigbee 3.0 and pairs directly to Zigbee2MQTT or ZHA with no Aqara hub needed.
In Home Assistant
| Control | Type | What it does |
|---|---|---|
| Switch (per relay) | Switch | Independent on/off control per relay. |
| Mode (per relay) | Select | Power, pulse, or dry-contact behaviour per relay — dry-contact/pulse mode is what enables garage-door and valve-style pulse switching. |
| Pulse length | Number | Configures how long the contact closes for in pulse mode, from roughly 200ms to 2 seconds. |
| Switch type | Select | Configures how the wired external switch input is interpreted, matching rocker vs momentary switches. |
Zigbee2MQTT exposes each relay as its own mode block — power, pulse, or dry-contact, with a configurable pulse length and switch type — rather than a single generic switch, and dry-contact wiring for garage-door or valve use runs to a different terminal block than the standard live-switching connections. The quirk worth knowing before building a garage automation: in pulse mode the relay's own hardware timer resets the contact locally, but the firmware doesn't reliably report that change back to the coordinator, so Zigbee2MQTT/HA can show the switch stuck on long after the physical pulse has already completed — a known firmware-level limitation with no fix, only workarounds. Since the relay has no door-position feedback of its own, the practical pattern is a toggle-triggered pulse automation paired with a separate reed/contact sensor on the door to track real open/closed state instead of trusting the relay's reported state.
Specs
- model
- LLKZMK12LM
- channels
- 2
- max load w led
- 250
- dry contact mode
- true
- neutral required
- true
- max load a combined
- 10
- max load w incandescent
- 2500