KERUI WIFI Alarm System Wireless Doorbell APP Control 32 tones Welcome/Doorbell/Alarm/Night Light Host And People flow Statistic

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KERUI Wireless WIFI Alarm System Sensor 32 Music Welcome/Doorbell/Alarm/Night Light Host Query And Statistics Flow APP Control

Order WM7 Kit send gift :


1. 32 melodies option

2. Welcome Chime/Doorbell/Alarm/Night Light 4 model function

3. WIFI connection ,APP Control

4. When Host are triggered by detectors,APP push messages can be received at the same time.

5. You can look through people flow statistics over a month

6. 5 adjustable volume levels (including mute)

7. 8 detectors and 4 remote controls can be added

8. Memory function (when the doorbell receiver power on, the tone stays the same with the one being set last time)

9. Dazzling and colorful indicator light

WM7 With Four mode :Welcome Chime/Burglar Alarm/Night light/Doorbell

In the day,It can be selected Welcome Chime Mode, when customers are coming ,it will welcome customers ,and remind you at the same time. Never miss every customer.At night,It can be selected Burglar Alarm Mode , and protect your property.

Multiple Choice for Multi-storey buildings, multiple shops

Sellers can watch people flow sttatement of Nearly 24 hours, Nearly 3 days,Nearly 1 week,Nearly 2 weeks,and Nearly1 month

Sellers can use APP statistics and make promotion activities to increase store sales

Night Light mode–convinient for you when you get up at night ,and no need to fumble and find switch

Doorbell Mode–Convinient for your visitors ,never miss a visitor.

waterproof button and low power consumption

WM7 connect WIFI and use APP control

From APP you can select mode ,add remote controls and detectors,adjust volume ,offline you can adjust manually

Note:connect adapter before you connect wifi .

APP Control–Scan QR code to download APP

ceiling/door/window/curtain PIR sensor

Imported sensors, infrared processing chip
External adapter: USB adapter 110-220V
Internal battery: DC 5V or 3*AAA battery
Standby current:≤ 50uA
Alarm current: ≤ 20mA
Detection range: 8-12 meters / 110 degrees
Wireless distance: About 100 meters in open area
Wireless transmitting frequency: 433 MHZ (+ 75 KHZ)
Shell material: ABS plastics

Operating temperature: 80% or (no condensation)

Kit 1:WM7 Host X1,P817 Motion detector X1,, Adapter X1,Alarm sticker X1

Kit 2:WM7 Host X1,P817 Motion detector X2, Adapter X1,Alarm sticker X1


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-20 Business days
Canada, Europe 10-20 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of . (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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