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SONOFF CD100S Door Window Alarm Sensor App Remote Control Smart Home Security System Works with Amazon Alexa Google Assistant
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SONOFF CD100S Door Window Alarm Sensor App Remote Control Smart Home Security System Works with Amazon Alexa Google Assistant

- White

    COD This product supports COD on delivery. Suggestions: Do not place orders with non-COD products, otherwise you will not be able to choose COD payment method.
    Estimated Shipping Time: business days Order Processing Time may require a few days. Once dispatched from warehouse, Shipping (or Delivery) Time depends on the Shipping Method.
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SONOFF CD100S Descriptions

Main Features:
● Ultra-low power magnetic dedicated microprocessor
● Supports wireless frequency of 433MHz
● 200m wireless transmit distance
● Built-in antenna provided
● Less than 1μA quiescent current
● The APP name is eWelink, can be downloaded by scanning the QR code in the maunal

● Support battery: 12V 23A AA battery ( not included )
● Wireless frequency: 433MHz
● Protocol: EV1527
● Operating environment: -10 - 50 Deg.C
● Size: sensor: 8 x 3.5 x 2cm, receiver: 7.5 x 2 x 1.5cm




Dimensions and Weight

Product weight: 0.0340 kg
Package weight: 0.0440 kg

Package Contents

Package Contents: 1 x Door Window Sensor Kit, 1 x English User Manual
SONOFF CD100S Door Window Sensor Wireless Automation Anti-theft Alarm Smart Home Security System - White
SONOFF CD100S Door Window Sensor Wireless Automation Anti-theft Alarm Smart Home Security System - White
SONOFF CD100S Door Window Sensor Wireless Automation Anti-theft Alarm Smart Home Security System - White
SONOFF CD100S Door Window Sensor Wireless Automation Anti-theft Alarm Smart Home Security System - White
SONOFF CD100S Door Window Sensor Wireless Automation Anti-theft Alarm Smart Home Security System - White
SONOFF CD100S Door Window Sensor Wireless Automation Anti-theft Alarm Smart Home Security System - White

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Customer Reviews

4.75 out of 5
  • 18
  • 6
  • 0
  • 0
  • 0
See all 24 reviews Write a Review
  • giuseppe
    Yes (3) Color: White
    SONOFF CD100S Sensore d'allarme per Porte e Finestre Wireless
    L’ITEAD Sonoff DW-1 è uno dei sensori della linea ITEAD Sonoff Smart Home tra i più elementari, ma non per questo poco efficaci.

    Si tratta, nello specifico, di un sensore di rilevamento apertura varchi, ovvero un dispositivo che, a fronte dell’apertura della finestra/porta/cancello/bascula rileva tale stato.
    E’ composto da due elementi in plastica, uno più grande (il quale contiene le componenti elettroniche nonché il LED di segnalazione), il “master”, e uno più piccolo, il quale contiene il magnete, lo “slave”.

    L’elemento master contiene la batteria da 12v e l’elettronica, la quale è dotata di un’ampolla che, posizionata in corrispondenza di uno dei due lati lunghi del master, contiene a sua volta due lamelle che chiudono un circuito quando in presenza della vicinanza del magnete “slave”. L’allontanamento dal magnete apre questo circuito e determina l’invio di un segnale radio a 433mhz verso un ricevente (segue approfondimento).

    Oct 02,2018

  • Михайло
    Yes (0) Color: White
    Отличный "концевик"
    Хороший качественный пластик. Работает отлично, комплект и инструкция отличные и доступные. Но один момент меня разочаровал это формат батарейки. По Инструкции указан формат ААА, но по факту нужна батарейка 12V (23A 12V). Такой маленький жирненький бачонок.
    Ещё один минус за то, что у магнита нет просветлённых отверстий под шуруп и надо самому сверлить.

    Jan 09,2019

  • Mariosmci
    Yes (0) Color: White
    sonoff Door window alarm sensor.
    I chose to rate this product with 5 stars because it's very good product.I like to this item that is a wireless.The advantages of this product is that is a wireless and you can put it where you I recommended it

    Nov 22,2018

    Yes (0) Color: White
    Muito bom
    Produto bom e com material e acabamento muito bons. Não tem como saber se a pilha (não inclusa) dura bastante como informado mas não atrapalha na avaliação.
    Até agora nada contra a ser observado

    Jun 27,2018

    Yes (0) Color: White
    Produto muito bem acabado com material de primeira qualidade
    Fácil pareamento com o dispositivo e funcionamento perfeito
    Não acompanha pilha 12v necessária para o funcionamento do produto

    Jun 27,2018


  • The smart doorbell is offline

    ● Make sure your Wi-Fi network is working properly.

    ● Restart the camera.

    ● Restart the Wi-Fi router.

    ● Check if your network has enough bandwidth.

    ● Check if the Wi-Fi signal is disturbed.

    The detail you can read this post:

    Smart doorbell common issues and solution

  • Wi-Fi network is not displayed in the app during the installation.

    Your doorbell may be too far away from your Wi-Fi router, the wireless signal is disrupted or there are other problems with your Wi-Fi network.
  • The camera is offline and can't reconnect.

    You can follow the steps below to solve problems.

    ● Make sure that the camera is plugged in and receiving power.

    ● Check whether the camera is warm or cold to the touch

    ● Move the camera

    ● Restart the camera

    ● Restart the router

    ● Check the settings of your Wi-Fi network or router

    ● Make sure your router is on the list of incompatible devices

    ● Try turning off other wifi-connected devices

    ● Reset the camera

  • The video is blurry and spotty

    ● Remove the sticker on the lens.

    ● Remove dust or dirt from the lens with a soft, lint-free cloth.

  • The doorbell does not work or sounds weak

    ● Check the switch or the socket for.

    ● Check the voltage in the Nest app.

    ● Check the bell settings in the app.

    ● Check the bell wiring.

    ● Check the doorbell wiring.

    ● Check if the transformer of your doorbell is compatible.

    ● When it is very hot or cold outside.

Customer Questions

  • All(6)
  • Product Information(6)
  • Stock Status
  • Payment
  • About Shipping
  • Others

how many door sensor can I connect to a bridge. I need 16 sensor

By Andrea Dec-10/2018 00:32:30

Hello Andrea,   This door and window sensor can be used with the SONOFF RF bridge 433 gateway. An RF bridge 433 can be paired with up to 4 sensors without learning the remote control.Buy at least 4 SONOFF RF bridge 433 gateways for 16 sensors

Can i see in ewelink app doors are opened or closed?

By Vyte Nov-26/2018 21:13:04

Hello Vyte,Please note that this can only be seen in the APP with open or closed usage records.Let me know if you need any further assistance. 

Does this sensor require any type of gateway or it communicates directly with phone via app?

By Jan Nov-06/2018 20:57:45

Hello Jan,This sensor needs to be used with the Sonoff RF Bridge RF Gateway.

does this product work with google home or amazon Alexa

By amazon echo compatible Nov-01/2018 20:00:03

Hello Amazon, Sorry, it doesn't work with google home or amazon Alexa.Let me know if you need any help.

Does this product work with xiaomi gateway?

By Andreas Oct-06/2018 18:07:48

Hello Andreas, No ,I am sincerely sorry that it does not .

What model battery is required by the unit.

By Hector Aug-15/2018 11:10:34

Hello Hector, Thanks for your inquiry.Support battery: 12V 23A AA battery ( not included )

6 Questions & Answers View All

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There are two key factors which will affect the time you receive your items.

Item processing time
After receiving your order,we require some time to test the product to ensure its quality.The exact processing time varies depending on the item.The average processing time is 3 working days.but this can also be affected by the item's stock status. For small quantity orders,the processing time is 1-3days while larger quantity orders may require 2-5days.
Shipping methods
China Warehouse:
Shipping Type Country or Region Arrive within 1-7 Days Arrive within 8-15 Days Arrive within 16-30 Days Arrive within 31-45 Days Average Time (Days)
Unregistered Air Mail or Registered Air Mail United States 0.52% 44.87% 49.88% 3.5% 18.13
Spain, United Kingdom, Italy, Germany, France & Portugal 5.18% 43.44% 48.34% 1.17% 15
Netherlands, Greece, Poland, Hungary, Slovakia, Czech Republic 2.96% 40.34% 52.54% 3.74% 18.66
Russia 0% 4.45% 84.41% 11.1% 28
Japan, Korea 0% 21.30% 68.80% 9.66% 17.75
Brazil 0% 0% 23.91% 72.09% 38.6
Turkey 0% 37.75% 59.05% 3.1% 20.33
Thailand, Singapore & Malaysia 0% 40.39% 56.12% 2.6% 16.2
Other countries 0.7% 38.79% 47.94% 8.56% 23.57
Priority Line United States 12.28% 79.05% 7.4% 0.52% 11.75
Spain, United Kingdom, Italy, Germany, France & Portugal 8.44% 66.56% 23.45% 0.45% 13.55
Russia 0% 3.48% 75.79% 20.04% 31
Brazil 2.21% 6% 61.29% 25.46% 30
Turkey 20.42% 77% 3% 0.08% 10
Australia 7.67% 86.60% 5.68% 0% 11
Korea 97.54% 1.57% 0.89% 0% 7
Japan 95.80% 2.09% 0% 0% 6.84
Thailand, Singapore & Malaysia 58.96% 41.04% 0% 0% 8.45
Other countries 22.33% 30.8% 27.62% 17.64% 18.65
Expedited Shipping ALL countries(EMS) 3.8% 46.8% 26% 15% 14.8
ALL countries(DHL) 65.8% 25.75% 3.86% 0.37% 6.72
GW Warehouse: Typically 3-5 days to the UK, 3-7 days to other European countries.
USA Warehouse: Generally, 3-7 days to a USA address.
ES Warehouse: Generally, 2-5 days to the Spain, 3-7 days to the Portugal.
Shipping from warehouse nearest to shipping address is faster. Additional charges may apply.
Note: This is a general guide and delays maybe caused force majeure, natural disasters, inclement weather, war, public holidays, and factors outside our control. Generally speaking, we offer free shipping for SONOFF CD100S to United States (US, USA), United Kingdom (UK, GB), Germany, Italy, France, Spain, Portugal, Poland, Brazil, Russia, Japan, Greece, Austria, Hungary, Slovakia, Czech Republic, Ireland, Lithuania, Israel, Denmark, Norway, Sweden, Canada, Australia, Netherlands, Korea, Turkey, Mexico, Ukraine, Romania, Columbia, Thailand, Singapore, Malaysia etc. Please choose the shipping methods for the final price.

Payment accepts PayPal,Credit Cards,Wire Transfer,Westem Union, YandexMoney,Webmoney,Boleto,OXXO and BKM as secure payment methods.

The most convenient payment method in the world.
Wire transfer
For orders which exceed $1,500,please contact us at
Note: please email us the order number,the amount transferred along with currency type,and the exact date of the wire transfer.
Western Union
Please contact us at for details.
Note: please email us the following information after you have paid via Westem Union:
· Control Number(10 digits)
· The exact amount sent along with the currency
· Name of sender.
· Address of sender
YandexMoney、 Webmoney
With YandexMoney and Webmoney, it is convenient and safe for you to pay via credit card、wallet or cash
For Brazil customers, we accept Boleto: you only need to fill in the payment information, remember your Boleto Voucher information and pay it within 3 days at any Boleto stores.
For Mexico customers, we accept OXXO: you can choose OXXO payment on our website, and then remember your OXXO Voucher information and pay it within 3 days at any OXXO stores.

Do you want to bulk buy SONOFF CD100S ? Please submit your wholesale SONOFF CD100S inquiry below. Please note we usually don’t offer free shipping on wholesale SONOFF CD100S orders, but the wholesale price will be a big bargain.

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