3Pcs Smoke Detector Wireless 433MHz Fire Security Protection Alarm Sensor for Smart Home Automation, Work with Ewelink APP
1. This smoke sensor can work alone to realize independent alarm at home.
2. To achieve remote control on the phone, smoke detector needs to work with Sonoff RF bridge( 433Mhz, EV1527) host.
3. Due to shipping limitation, battery( DC9V 6F22 ) for smoke detector not included.
3 x Wireless Smoke Detector
3 x User Manual
1. Support three alarms: independent sound & light flash alarm, wireless 433 transmission network alarm.
2. Full snap-in patented structure, simple installation, no need for debugging and wiring.
3. 360 degrees smoke detection and alarm, no dead angle, reliable.
4. Built-in high-sensitivity sensing technology, reliable and safe.
5. Built-in 90 dB sound and light alarm reminder, effectively prompting people to evacuate.
6. Ultra-low-power microcontroller + photoelectric principle technology, long standby life battery use for 3 years.
7. Adopt high-performance photoelectric two-way scattering patented technology of two-receiving & one-transmitting, stable, reliable and accurate.
8. Low Voltage Alarm: When the battery voltage is lower than 6.8V, a warning sound is issued to remind the user to change the battery.
9. Rotary detachable top cover design to facilitate cleaning and battery replacement.
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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.
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.
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.
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.
|Location||*Estimated Shipping Time|
|United States||10-30 Business days|
|Canada, Europe||10-30 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|
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.
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.
For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.
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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.
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