Country of Origin | China |
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Item part number | NS-Security sensor-4 |
Product Dimensions | 10 x 10 x 5 cm; 200 Grams |
ASIN | B07KZQ94QL |
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Sold by: NAVKAR SYSTEMS
(386 ratings)
55% positive over last 12 months
55% positive over last 12 months
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Door Sensor Alarm Set of 4 Working DemonstrationNAVKAR SYSTEMS
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NAVKAR SYSTEMS Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors
-61% ₹969₹969
M.R.P.: ₹2,499₹2,499

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- Free Delivery
- Pay on Delivery
- 10 days Replacement
- Top Brand
- Amazon Delivered
- Secure transaction
Free Delivery
The product is eligible for Free delivery. Learn more
What is Pay on Delivery (Cash/Card)?
Pay on Delivery (Cash/Card) payment method includes Cash on Delivery (COD) as well as Debit card / Credit card / Net banking payments at your doorstep.
10 days Replacement
Replacement Reason | Replacement Period | Replacement Policy |
---|---|---|
Defective, Wrong and Missing Item, Physical Damage | 10 days from delivery | Replacement |
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Keep the item in its original condition and packaging along with MRP tag and accessories for a successful pick-up.
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Purchase options and add-ons
Colour | white |
Brand | NAVKAR SYSTEMS |
Power Source | Battery Powered |
Item Dimensions LxWxH | 10 x 10 x 5 Centimeters |
Noise Level | 80 dB |
About this item
- Easy installation: no need of drill, just stick to door/window by using adhesive<br>
- Replaceable battery: once battery is weak just replace them by opening cover<br>
- Sharp ear piercing sound: inbuilt siren give sharp siren sound as soon as door/window gets opened<br>
Customer ratings by feature
Motion detection
4.8 4.8
Easy to install
4.6 4.6
Adhesion
4.2 4.2
Value for money
3.8 3.8
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NAVKAR SYSTEMS

79% positive ratings from 1K+ customers

500+ recent orders from this brand

7+ years on Amazon
Frequently bought together

This item: NAVKAR SYSTEMS Wireless Door Window Open Alert Home Security System Siren/Alarm, Standard Size, White - Set of 4 Nos Sensors
₹969.00₹969.00
Get it by Monday, June 12
In stock.
₹565.00₹565.00
Get it by Monday, June 12
In stock.
₹970.00₹970.00
In stock.
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- Highest ratedin this set of productsGeneral Electric Wireless Personal Window/Door Alarm for Security (White) - Pack of 2
Product information
Technical Details
Additional Information
Item Weight | 200 g |
---|---|
Item Dimensions LxWxH | 10 x 10 x 5 Centimeters |
Included Components | Pack of 4 Sensor |
Best Sellers Rank | #1,884 in Home Improvement (See Top 100 in Home Improvement) #13 in Home Security Alarms |
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Important information
Legal Disclaimer:
Navkar Systems doesn't authorize any other seller to sell our products on amazon or any online website. Beware of them and buy genuine products from Navkar Systems only. If you don't know understand how this product is used and to get Great Discounts on the products on Amazon from Navkar Systems Please contact 9996635607, 9416135607
What is in the box?
Product Description



Navkar Systems Wireless Door Window Open Alert Alarm Home Security System Siren
for Home Office Door Windows
- Small and exquisite, easy to install, easy to stick with the double-sided adhesive.
- The standby time of 3 * 1.5V LR44 button battery (included in the machine) can be up to one year, and the replacement is convenient.
- Simply glue the main and auxiliary parts to the door and door frame or two windows and align them. Once the thieves pry the door, pry the window and try to steal, the alarm can make a loud alarm sound 105 dB to scare thieves and remind the owner.
- High temperature resistant
- Corrosion Resistant
- Super environmental suitability and stability
- Dustproof and insect prevention

105 DB LOUD ALARM
- Easy Use Just Switch on at Night and switch off in a day.
- As soon as any unauthorized person tries to open a door or window get a louder sound of 105dB Sound loud enough to hear from 150 feet away

Easy Fixing
- Came with 3-M Gum so that easy in fixing with the gate.
- No Tools Required. There Is A Double-Sided Sticker On The Back Of The Transmitter, Just Stick It Where You Need To Install It.
- No need for drilling and screw

Replaceable Battery
- Fitted with 3 nos. AG13 button cell
- Life of Battery around 1 year ( if open once a day )
- Easy Replacement of cell by sliding battery cover

24/7 security monitoring for home, office, garage, warehouse, store, cellar, pet house, and more.
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Customer reviews
4.0 out of 5 stars
4 out of 5
436 global ratings
How are ratings calculated?
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.

This product may be good but ity doesnt fit my door style. Hence i need refund and not replacement. I dont know whether ites defective because it cannot work in my doors.
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Top reviews
Top reviews from India
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Reviewed in India 🇮🇳 on 19 November 2022
Verified Purchase
Easy to install and use.
Reviewed in India 🇮🇳 on 4 February 2022
Verified Purchase
The product is fine. The sound is loud and irritating which is actually good. Except one of them did not work properly. It kept ringing even though the door was closed and the distance between the sensors was very close.
Reviewed in India 🇮🇳 on 16 April 2023
Verified Purchase
Security
Reviewed in India 🇮🇳 on 17 November 2022
Verified Purchase
Bought a pack of 4 pieces, out of which one was not working (the sound is not audible).
I can see similar experience mentioned in the customer reviews.
I can see similar experience mentioned in the customer reviews.
Reviewed in India 🇮🇳 on 12 March 2022
Verified Purchase
i have fixed the alarms on our 3 main doirs that opens towards main road, before fixing i tested on spot about the alarm function all 3 were working good with loud sound, but the 4th one is faulty and disfunctioning the alarm is ringing even when the 2 pieces of system are closely held
i dont know what to do with this faulty piece, i would be thankful to amazon if they help me getting a replacement for faulty alarm piece
iam ready to return the faulty alarm piece to manufacturer to check fault
i bought after seeing good quality reviews by many buyer, but i found that the navkar systems management is not checking the alarms before dispatch
i dont know what to do with this faulty piece, i would be thankful to amazon if they help me getting a replacement for faulty alarm piece
iam ready to return the faulty alarm piece to manufacturer to check fault
i bought after seeing good quality reviews by many buyer, but i found that the navkar systems management is not checking the alarms before dispatch
Reviewed in India 🇮🇳 on 13 March 2023
Value for money product. Works as per mentioned in description. Sound is enough but they should add some more features to send message over phone when alarm triggers. But still good.
Verified Purchase
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Reviewed in India 🇮🇳 on 9 May 2023
Verified Purchase
I have ordered set of four and out of that two alarm not working.
Reviewed in India 🇮🇳 on 29 January 2023
Verified Purchase
Good