We bought two extra door sensors to add to existing system but can’t get them to connect to the base. Any ideas ?

Dear friend, Please unplug/plug the siren for 3 times. you will 3 beeps. please trigger the two door sensors very quikly by seperate the door sensor from magnet stip. If any other problem,please feel free to contact us via Amazon message or after-sale email fuers.csc01@outlook.com

What plastic is it made of?

Hey there, The D022 door/window sensor is made of ABS plastic, and we have added that information to the item listing, please have a check. Fuers Support

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KERUI 433MHz Wireless Door/Window Magnetic Sensor For GSM Home Security Alarm Systems

KERUI 433MHz Wireless Door/Window Magnetic Sensor For GSM Home Security Alarm Systems

Product ID: 57363127

Details

Brand
KERUI
Colour
White
Compatible devices
Smartphone
Connectivity technology
Wireless
Power source
Battery

📏250ft max transmission range

📡433MHz wireless frequency

🔋Battery included with low-battery alert

HK$272

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🔐 Stay one step ahead—secure your space with smart wireless precision!

EFFORTLESS DIY INSTALLATION - Self-adhesive mounting and simple setup save time and hassle.
SMART LOW BATTERY INDICATOR - Stay ahead of downtime with LED alerts before power runs out.
UNIVERSAL KERUI COMPATIBILITY - Plug-and-play with all KERUI alarm systems for a cohesive security network.
EXTENDED 250 FT COMMUNICATION RANGE - Keep your home protected even from a distance with powerful signal reach.
SEAMLESS 433 M HZ WIRELESS CONNECTIVITY - Instant alerts with reliable radio frequency for uninterrupted security.

The KERUI 433MHz Wireless Door/Window Magnetic Sensor offers a robust, battery-powered security solution that instantly alerts your KERUI alarm system when doors or windows open. Featuring a 250-foot wireless range, easy self-adhesive installation, and a smart low-battery LED indicator, it ensures reliable, hassle-free protection for your home or business.

Specifications

ASIN	B072ZTRL8N
Alert Type	Entry
Assembly Instructions Description	DIY
Battery Cell Composition	Alkaline
Best Sellers Rank	373,454 in DIY & Tools ( See Top 100 in DIY & Tools ) 689 in Home Alarm Systems
Brand	KERUI
Colour	White
Compatible Devices	Smartphone
Control Method	App
Customer Reviews	4.2 4.2 out of 5 stars (70)
Included Components	Battery
Installation method	Self-Adhesive
Manufacturer	KERUI
Maximum Range	250 Feet
Model Number	D022
Network Connectivity Technology	Wireless
Part Number	D1527
Power source	Battery Powered
Sensor Technology	Contact Sensor
Sound Level	140 Decibels
UPC	607467345691
Unit Count	1.0 count
Voltage	12 Volts

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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HK$272

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

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