Window & door alarm sensor for home security.

Detects people leaving or entering the home.

Easy to install & place it anywhere.

Remote alert notification & voice alarm from Alexa.

Connect contact sensor with other SwitchBot products.

Customer Reviews

Based on 16 reviews
88%
(14)
13%
(2)
0%
(0)
0%
(0)
0%
(0)
D
DAVIDE DI BERNARDO
Ottimi prodotti.

Ho acquistato i motori per chiusura tende, il mini hub e i sensori finestre, nonché il termometro. Tutto funziona molto bene

G
Gary Durnford

Superb! easily set up and good response times

P
Paul Tustin
Sensors

Does what it says on the box

M
MATTHEW
great product

i love these contact sensors they work well with the bot a bulb i also purchased

T
Tai Duangjan
Quite impressive contact sensor and motion sensor integration (also with light sensor)

The killing feature of this contact sensor is knowing the state of Exit/Enter the room using its contact sensor integrating with built-in motion sensor. When there's motion detected and door opened, it considers this as Exit. In the other way, when the door is opened without motion detected (which means you open the door from outside), it'll consider this state as Enter.

I have to say it's kinda impressive and more useful than ordinary contact sensor from other brands in the market that are unable to know if you enter or exit the room if you have no dedicated motion sensor installed to set some scenes. Additionally, there's built-in light sensor to know if the room is dim or bright which can be used to make automation more accurate, for example, you want to set a scene with this contact sensor to control the SwitchBot Bot to toggle light switch ON/OFF, instead of only set a scene IF... the contact sensor state is enter... THEN... turn the light on, you can set IF... the contact sensor state is enter + the room is dim ... THEN... turn the light on. This can avoid the Bot repeatedly toggle the light switch on if the light is already on (so the room brightness state is Bright.) before the scene's conditions meet. (In case you live with someone else that's still in the house not going out with you and keep the light on, or if you set automation on other app like Google Home to turn your light on before you enter the room (using location data) etc. With these 3 sensors integration, you'll be able to set more complex and accurate scenes with only a contact sensor.

However, for me, it's still not the ideal. I'd say this is near perfect if you install it on the front door of home that you only go outside and inside few times a day and always keep the door completely closed. In my case, I use it with my bathroom door that I get in and out all day all night, and sometimes I don't close the door or anything you can imagine that because it is a bathroom door in my house. Sometimes I just want to get in to clean my face and leave the door opened. This could make the device confused as things happening don't follow every step like in the scenes set, so I have to try integrating with SwitchBot Motion Sensor to set automated scenes for my complicated bathroom life. The outcome is quite decent. Just have to set certain numbers of scenes and set the time for each scene to make it more accurate to cover every single use case that's possible with my everyday-life behavior.

And the other point that should be considered is that this contact sensor is not currently fully functional with Amazon Alexa, Alexa only sees it as an ordinary contact sensor that knowing only if it's open or closed. This means if you want to use its full functions, you have to set automated scenes in SwitchBot app only. I just wish they'd make it possible to integrate all functions with Alexa and Google Home soon.

Overall, this is quite impressive. For this price, you'll get 3 integrated sensor in a form of a contact sensor (maybe a bit bigger than others). With separated SwitchBot Motion Sensor working together can make the automation smarter. However, ideally, I'd love to see this kind of sensors that's really able to detect real-time human presence. It would definitely be perfect, so my bathroom's complexity can be ended forever. Looking forward to seeing from SwitchBot.

Terms and Conditions

Items directly purchased from www.switch-bot.com can be returned in 30-days for a full refund or exchanged under the following circumstances:

1. Missing, Damaged, or Wrong Items.

Please inspect your order as soon as you receive it. We always do our best to deliver your order in an efficient manner and strive to make sure your orders are complete and undamaged. If in the unlikely event your order is missing, incorrect, or damaged, please contact us immediately.

2. Malfunction or Serious Product Quality Issues.

Please read the Manual first before you set up and use your product. In the meantime, you can refer to the FAQ page of our official website or ask for assistance via “Feedback” via the SwitchBot App. If you have encountered malfunction or product quality issues that affect the use of your product, please contact us within 30 days of receipt of shipment.

3.If your product is unopened you are eligible for a return or refund.

Other notes:

1.If your product is not faulty and you have already opened your device, we do not offer refund or exchange.

2.Any item that is damaged through customer misuse or missing parts due to customer tampering cannot be returned or refunded.

3.If customers choose the wrong rail model subjectively, we will not provide any return or exchange service after this 30-day period has expired.

4.Before returning an item, please make sure that you contact our returns team at support@wondertechlabs.com,this helps us to make sure your return is received in a safe and timely manner. Should you fail to notify us of a return being made,SwitchBot will not be held accountable for loss of stock and/or losses incurred due to negligence when in transit.

5.For non-quality-related warranty claims,the buyer will be responsible for all shipping costs.

Return and Refund Procedure

1.If you are looking to apply for a return or refund,please email the following information to support@wondertechlabs.com, we will send a confirmation email to you within 3 business days of your request.

*Order ID

*A description of the reason for your return

* A video/image that explains the issue

2.We will confirm if the package is unopened or not, and will supply a return address to customer.

3.Customer will then send back the package and device.

4.Customer must then provide a tracking number for their delivery.

5.Our processing centre will confirm there are no issues with the return.6.Refund will be processed.

Note: The time it takes for products to be sent back to our warehouse varies and may take up to as long as 1 month. Our warehouse accepts returns every two weeks . If you find that your return has not been processed according to your expectations, we would ask that you please wait patiently; (our warehouse is located in three places: the United States, United Kingdom and Europe), and we will deal with your return as fast as we can.

The following content should help solve some frequently asked questions regarding our refund policy.

How can I cancel my order?

You can cancel your order within 12 hours of order placement, if your order has been submitted for more than 12 hours it cannot be canceled unless it hasn't been shipped out yet.

Note:Please allow us 24 hours to fully process orders, if you do not receive a tracking number in more than 72 hours please contact us at support@wondertechlabs.com.

Question: 
Does this have a “panic alarm” feature? Or does it need to be paired with an Alexa?
Answer: 
If you pair it with Alexa you can have it play an alarm

Question: 
Is this Zigbee?
Answer: 
No, BLE.

Question: 
will this run on a 5g mesh network? im in an apartment and the 2.4 is overpowered by there 5g network so will this work?
Answer: 
The SwitchBot devices are all Bluetooth BLE. The hub is 2.4G and it is the hub that connects to the Internet and allows integration with Alexa etc

Question: 
Would this be good to use for a child’s door (my 3 year old gets out and into everything)??
Answer: 
Yes. I use mine with Alexa to broadcast door open.

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Customer Reviews

Based on 16 reviews
88%
(14)
13%
(2)
0%
(0)
0%
(0)
0%
(0)
D
DAVIDE DI BERNARDO
Ottimi prodotti.

Ho acquistato i motori per chiusura tende, il mini hub e i sensori finestre, nonché il termometro. Tutto funziona molto bene

G
Gary Durnford

Superb! easily set up and good response times

P
Paul Tustin
Sensors

Does what it says on the box

M
MATTHEW
great product

i love these contact sensors they work well with the bot a bulb i also purchased

T
Tai Duangjan
Quite impressive contact sensor and motion sensor integration (also with light sensor)

The killing feature of this contact sensor is knowing the state of Exit/Enter the room using its contact sensor integrating with built-in motion sensor. When there's motion detected and door opened, it considers this as Exit. In the other way, when the door is opened without motion detected (which means you open the door from outside), it'll consider this state as Enter.

I have to say it's kinda impressive and more useful than ordinary contact sensor from other brands in the market that are unable to know if you enter or exit the room if you have no dedicated motion sensor installed to set some scenes. Additionally, there's built-in light sensor to know if the room is dim or bright which can be used to make automation more accurate, for example, you want to set a scene with this contact sensor to control the SwitchBot Bot to toggle light switch ON/OFF, instead of only set a scene IF... the contact sensor state is enter... THEN... turn the light on, you can set IF... the contact sensor state is enter + the room is dim ... THEN... turn the light on. This can avoid the Bot repeatedly toggle the light switch on if the light is already on (so the room brightness state is Bright.) before the scene's conditions meet. (In case you live with someone else that's still in the house not going out with you and keep the light on, or if you set automation on other app like Google Home to turn your light on before you enter the room (using location data) etc. With these 3 sensors integration, you'll be able to set more complex and accurate scenes with only a contact sensor.

However, for me, it's still not the ideal. I'd say this is near perfect if you install it on the front door of home that you only go outside and inside few times a day and always keep the door completely closed. In my case, I use it with my bathroom door that I get in and out all day all night, and sometimes I don't close the door or anything you can imagine that because it is a bathroom door in my house. Sometimes I just want to get in to clean my face and leave the door opened. This could make the device confused as things happening don't follow every step like in the scenes set, so I have to try integrating with SwitchBot Motion Sensor to set automated scenes for my complicated bathroom life. The outcome is quite decent. Just have to set certain numbers of scenes and set the time for each scene to make it more accurate to cover every single use case that's possible with my everyday-life behavior.

And the other point that should be considered is that this contact sensor is not currently fully functional with Amazon Alexa, Alexa only sees it as an ordinary contact sensor that knowing only if it's open or closed. This means if you want to use its full functions, you have to set automated scenes in SwitchBot app only. I just wish they'd make it possible to integrate all functions with Alexa and Google Home soon.

Overall, this is quite impressive. For this price, you'll get 3 integrated sensor in a form of a contact sensor (maybe a bit bigger than others). With separated SwitchBot Motion Sensor working together can make the automation smarter. However, ideally, I'd love to see this kind of sensors that's really able to detect real-time human presence. It would definitely be perfect, so my bathroom's complexity can be ended forever. Looking forward to seeing from SwitchBot.