SwitchBot mmWave Presence Sensor
SwitchBot mmWave Presence Sensor
SwitchBot mmWave Presence Sensor
SwitchBot mmWave Presence Sensor
SwitchBot mmWave Presence Sensor
SwitchBot mmWave Presence Sensor
SwitchBot mmWave Presence Sensor
SwitchBot mmWave Presence Sensor
SwitchBot mmWave Presence Sensor

SwitchBot mmWave Presence Sensor

Smart Sensors
US$29.99
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Product Description

  • Motion & Presence Detection: Presence Sensor combines mmWave radar with light-sensing technology and PIR sensor to accurately detect subtle chest movements from stationary humans. Perfect for bathrooms, reading, or office use, it prevents lights from turning off unexpectedly and enables automated lighting.
  • Battery Design & Flexible Installation: Equipped with a long-lasting battery, this sensor frees you from power cables and can operate up to 2 years on a single charge. The magnetic base allows flat placement, wall mounting, and adjustable detection angles, making it ideal for bathrooms, living rooms, studies, and other areas throughout your home.
  • Smart Automations: Presense Sensor works without a hub for instant, second-level response. Seamlessly pair with SwitchBot devices (e.g., Bot, Curtain, Light Series, etc. ) with local linkage and set up to 2 automations. For more complex automations, pair with a SwitchBot Hub to trigger smart scenarios, such as automatically turning on lights and air purifiers while working from home.
  • AI Anti-Interference: Enable AI self-learning with one click to automatically filter out interference from fans, air conditioners, and more, improving detection accuracy. The magnetic base allows the Presence Sensor to rotate and adjust its detection zone, effectively preventing false triggers from pets and meeting diverse home needs.
  • Full-Scene Coverage: 120° wide-angle detection with a range of up to 8 m for moving humans and 5 m for stationary humans. Ensures complete coverage from bathroom to living room, meeting the sensing needs of every space.
  • Multi-Platform Compatibility & Voice Control: Presense Sensor supports Apple Home via SwitchBot Matter Hub, Home Assistant, Alexa, Google Home, and other platforms.

Warranty

  • SwitchBot Presence Sensor is covered by a 1-year warranty.
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Customer Reviews

Based on 32 reviews
66%
(21)
16%
(5)
16%
(5)
0%
(0)
3%
(1)
J
John Close
Honey I'm home

What a great sensor! Integrates easily with Home Assistant, detects presence reliably, and a bonus ambient light detector. And no power cables - FTW.

C
Customer
5 stars – exactly what I was looking for in my smart home

I mainly use the SwitchBot mmWave Presence Sensor for controlling the lights in my office and hallway, and it works really well for that.

In the office, the difference compared to a regular motion sensor is immediately noticeable. When I’m sitting at my desk and barely moving, the light still stays on reliably. With other sensors, I often had the problem that the light would suddenly turn off even though I was still in the room. With this sensor, that basically doesn’t happen anymore.

It’s also very useful in the hallway. The light turns on automatically when someone is there and switches off again when no one is detected. It makes everyday life a bit more comfortable, especially when I have my hands full or I’m just walking through.

Setup was straightforward, and after a little fine-tuning, the sensor has been working very reliably. For me, it has become one of those smart home devices you quickly get used to because it simply works quietly in the background.

Overall, I’m very happy with it. For light control in the office and hallway, I can definitely recommend the SwitchBot mmWave Presence Sensor.

N
Nina Heathcote
Lights on, lights off!

Excellent little gadget that does everything it claims to do! For me, it's a simple setup (using the Switchbot hub 3 as a controller) where presence is noted the lights come on, and if the room is empty, lights go off. It is really good at detecting presence even if you sit very still in the room too. Im very pleased with this gadget and will be getting more as my smart home grows!

C
Customer
Good sensor

The sensor works well, but it would be better if there were more settings like presence and motion sensitivity

G
Gerald Haas

Perfect

M
Muslim Baig
Presence Sensor build quality and features are great, integration with Homey Pro might be lacking

The Presence Sensor's build quality and features are great, I'm really digging the magnetic stand, however, integration with Homey Pro has been somewhat lackluster. I was hoping to replace my Aqara P1, since Switchbot’s Presence Sensor uses mmWave for more accurate detection. However, after integrating with Homey Pro, I can see the Sensor reacts almost immediately to presence, but, for some reason reporting to Homey Pro for triggering workflows has a >10sec delay. I tried connecting over both the Hub and BLE approaches, neither seemed to improve the response times. I really like Switchbot products and want this sensor to succeed. Hoping Switchbot engineers/devs can help rectify the issue. Thanks.

1
1430959 renogy customer
So far so good

Make sure you turn all fans/computers on in the room when you scan. Works well.

A
Allan Thompson
Much more reliable sensing

After a poor experience with the Switchbot sensor this prence sensor os much more reliable. WE use the sensor to trn the light on in our laundry room and when we first obtained the sensor, it worked sometimes. It became more unreliable and eventually, we took the plunge and bought the Presence Detector. This device has proved to be much more reliable and is operating just as we want it to, turning the ligt on when someone laden with clothes enters the room!

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Coming Soon

Customer Reviews

Based on 32 reviews
66%
(21)
16%
(5)
16%
(5)
0%
(0)
3%
(1)
J
John Close
Honey I'm home

What a great sensor! Integrates easily with Home Assistant, detects presence reliably, and a bonus ambient light detector. And no power cables - FTW.

C
Customer
5 stars – exactly what I was looking for in my smart home

I mainly use the SwitchBot mmWave Presence Sensor for controlling the lights in my office and hallway, and it works really well for that.

In the office, the difference compared to a regular motion sensor is immediately noticeable. When I’m sitting at my desk and barely moving, the light still stays on reliably. With other sensors, I often had the problem that the light would suddenly turn off even though I was still in the room. With this sensor, that basically doesn’t happen anymore.

It’s also very useful in the hallway. The light turns on automatically when someone is there and switches off again when no one is detected. It makes everyday life a bit more comfortable, especially when I have my hands full or I’m just walking through.

Setup was straightforward, and after a little fine-tuning, the sensor has been working very reliably. For me, it has become one of those smart home devices you quickly get used to because it simply works quietly in the background.

Overall, I’m very happy with it. For light control in the office and hallway, I can definitely recommend the SwitchBot mmWave Presence Sensor.

N
Nina Heathcote
Lights on, lights off!

Excellent little gadget that does everything it claims to do! For me, it's a simple setup (using the Switchbot hub 3 as a controller) where presence is noted the lights come on, and if the room is empty, lights go off. It is really good at detecting presence even if you sit very still in the room too. Im very pleased with this gadget and will be getting more as my smart home grows!

C
Customer
Good sensor

The sensor works well, but it would be better if there were more settings like presence and motion sensitivity

G
Gerald Haas

Perfect

M
Muslim Baig
Presence Sensor build quality and features are great, integration with Homey Pro might be lacking

The Presence Sensor's build quality and features are great, I'm really digging the magnetic stand, however, integration with Homey Pro has been somewhat lackluster. I was hoping to replace my Aqara P1, since Switchbot’s Presence Sensor uses mmWave for more accurate detection. However, after integrating with Homey Pro, I can see the Sensor reacts almost immediately to presence, but, for some reason reporting to Homey Pro for triggering workflows has a >10sec delay. I tried connecting over both the Hub and BLE approaches, neither seemed to improve the response times. I really like Switchbot products and want this sensor to succeed. Hoping Switchbot engineers/devs can help rectify the issue. Thanks.

1
1430959 renogy customer
So far so good

Make sure you turn all fans/computers on in the room when you scan. Works well.

A
Allan Thompson
Much more reliable sensing

After a poor experience with the Switchbot sensor this prence sensor os much more reliable. WE use the sensor to trn the light on in our laundry room and when we first obtained the sensor, it worked sometimes. It became more unreliable and eventually, we took the plunge and bought the Presence Detector. This device has proved to be much more reliable and is operating just as we want it to, turning the ligt on when someone laden with clothes enters the room!

Quick Intro

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Quick Intro

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Specs

Product Info
Size54 × 54 × 28 mm (2.13 × 2.13 × 1.10 in)
Weight38 g
MaterialUV-Resistant ABS
Protection LevelIP55
Functional Parameters
ButtonReset button for pairing or reset
Local LinkageSupports SwitchBot Bot, Relay, Light
AutomationWorks with all SwitchBot devices
Third-Party SupportAlexa, Google, Siri, IFTTT, SmartThings
Operating Temp0–40 °C / 32–104 °F
Operating Humidity10%–90% RH (non-condensing)
Power Supply
Power2 × AAA batteries
Battery LifeUp to 2 years
Others
RangeUp to 100 m / 328 ft (open air)
Warranty1 year