Switching and Sensing, All in One Space.
Sense and Greet your Presence
Sense beyond Motion
Presence sensors don’t just see movement—they know you’re there. Unlike motion sensors that shut off when you sit still, presence sensors use advanced detection to keep lights and devices on as long as the room is truly occupied, delivering comfort, accuracy.
Invisible Sleek Design
Millimeter Wave presence sensor is built-in, no protruding design like some bulky motion sensor, basically retaining the look of a light switch.
Absence Delay Timer
When absence is detected, the sensor waits for a user-defined period before confirming the area is unoccupied. This customizable delay helps avoid false triggers from brief absence or minimal movement.
Auto-On/Off
Set lights to turn on when presence is detected, turn off when absence is detected. Each switch can be configured individually for flexible control.
Zigbee & Thread Dual-Protocol Support
Thread Mode
Integrate with multiple platforms through Matter, including Apple Home, Google Home, Amazon Alexa, Home Assistant, Samsung SmartThings, and more.
Zigbee Mode
Using the Zigbee protocol, you unlock more exclusive features in the Aqara Home app, while also enjoying Matter compatibility via a Matter Bridge like our Hub M100.
2-in-1 Neutral
The switch is designed to work in homes with neutral wiring or without. Installation is straight forward for both with/without neutral housing situations. For homes with neutral wiring, the switch provides extra features such as overload protection*, power monitoring* and more.
Power Monitoring
The Aqara app provides a clear view of your real-time and historic energy consumption for connected lights, with detailed data and visual charts available by day, week, month, or year. This allows you to track energy usage and gain valuable insights. Use this information to create energy-saving plans and automations for more sustainable energy use.
3-Way Control Retained
Designed for flexible use, the switch is compatible with single-pole or 3-way wiring. It operates with or without a neutral wire. Replace your traditional 3-way switches for smart control without losing the 3-way function.
Up to 3 Lights/Channels
Presence Switch H2 US
(2 Buttons, 1 Channel)
Presence Switch H2 US
(2 Buttons, 2 Channels)
Presence Switch H2 US
(4 Buttons, 3 Channels)
Power-Off Memory
By default, this feature ensures your appliance remembers its current settings after a power outage. When power is restored, the appliance will automatically resume operation as it was, whether on or off. Alternatively, you can choose to reverse the settings or have them always on/off every time the problem occurs for added flexibility, keeping your home efficient and hassle-free.
Customized Wired & Wireless Buttons
Decoupled Switch Mode*
Decoupled Switch Mode disables the physical button's control of the relay, allowing it to be pressed exclusively for scenes and automations. This setup keeps the connected circuit unaffected by physical interaction, but it still can be controlled via app/automation/voice.
Relay Lock*
When enabled, relay (connected load) can't be controlled via physical button, app, automation/scene, or third-party control.
Custom Press Mode*
This mode** gives the buttons three pressing methodswhich allows the switch to control three times morecustom scenes and automations.
*Single-Press Mode:
Only allows on/off control of outlets.
*Multi-Function Mode:
You can attach double press, and long press to different devices and automations.
** (2 Buttons, 2 Channels) version does not support custom press mode because all buttons are dedicated to controlling the channels.
Button Functionality Overview
Presence Switch H2 US
(2 Buttons, 1 Channel)
Presence Switch H2 US
(2 Buttons, 2 Channels)
Presence Switch H2 US
(4 Buttons, 3 Channels)
Advanced Aqara Home Features
MARS Tech
Unlike most smart switches, the light switch is fully compatible with Aqara smart lights. Thanks to MARS tech*, the smart light remains online even if the switch is accidentally turned off. The indicator light stays synchronized, and the switch button links automatically without requiring any additional setup.
Quick Two-Way Control
When configured, this switch (decoupled) enables two-way control of the light or wired load connected to another Aqara smart switch.** Additionally, the indicator lights on both switches are synchronized for seamless operation.
** The associated button must correspond to the light/load wired to the controlled switch, and the controlled device must be an Aqara switch.
Smart Automation
Easy Wireless Lighting Access
WHEN Button 2 is pressed
THEN Turn on/off Ceiling Light - Main Light
WHEN Button 2 is double-pressed
THEN Turn on/off Ceiling Light - Side Light
Smart Light Timeout
WHEN Presence is detected
THEN Turn on light
WHEN Absence is detected over set minutes
THEN Turn off light
Thread/Zigbee Features Comparison
| Thread Protocol (Default) | Zigbee Protocol | |
|---|---|---|
| Requires | Thread-enabled Matter Controller | Aqara Zigbee hub |
| Light on/off control | 
|
|
| Power-Off Memory | |
|
| Power Monitoring | * Availability depends on the platform used. |
|
| Presence Trigger |  |
|
| Presence Detection Range | |
|
| Decoupled Switch Mode | |
|
| Relay Lock | |
|
| Custom Press Mode | |
|
| MARS Tech | |
|
Three Product Versions to Choose From
Presence Switch H2 US
(2 Buttons, 1 Channel)
Presence Switch H2 US
(2 Buttons, 2 Channels)
Presence Switch H2 US
(4 Buttons, 3 Channels)
Tech Specifications
| Model | WS-K22D/WS-K03D/WS-K04D |
| Wireless Protocols | Thread, Bluetooth, Zigbee |
| Dimensions | 119 × 74 × 42 mm (4.69 × 2.93 × 1.67 in.) |
| Operating Temperature | 0°C ~ 40°C (32°F ~ 104°F) |
| Operating Humidity | 0 ~ 95% RH, no condensation |
| Electrical Rating | 120 VAC, 60 Hz, Max. 10 A (Resistive Load or Incandescent), μ |
| Minimum Power | 5W (No Neutral), Unlimited (With Neutral), general purpose |
| What is in the Box | Presence Switch H2 US × 1, Compliance Statement × 1, User Manual × 1, Screw Kit × 1, Wire Nuts Kit × 1, Wiring Sticker Sheet × 1 |
