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$8.34Below its usual priceOther options: $8.34 to $22.91

ℹ️ Final price is set on AliExpress – during sales (e.g. SuperDeals) it is often lower.

Stable price for 9 tracked daystracked $25.97 · avg $26.09 · low $25.86 · checked 29 Oct 🛒 Buy on AliExpress →

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$8.34

SONOFF SNZB-04PR2 SenseGuard DW Gen2 Zigbee Door/Window Sensor, Active Security, Matter Bridge via Apple Home

Name: SONOFF SNZB-04PR2 SenseGuard DW Gen2 Zigbee Door/Window Sensor, Active Security, Matter Bridge via Apple Home
Brand: SONOFF
SKU: 1005011619469027
Price: 8.34 USD
Availability: InStock

98.7% positive feedback522 reviews 2k+ sold recently🏷️ SONOFF🏬 Sold by SONOFF-Flagship Store✓ Picked

AliExpress buyer rating

The percentage shows how many AliExpress buyers rated this product positively. InstaShop does not edit or filter the rating.

✓ Selected for InstaShop by high positive feedback (88%+) and proven sales

✅ Compact design for discreet installation
✅ Zigbee protocol ensures low power consumption
✅ Matter compatibility when used with a supported bridge

👤 Smart home enthusiasts looking for a reliable way to monitor entry points or trigger automations.

Price updated 29 Oct 2026

Price range by option: $8.34 – $22.91

Choose an option (2)

Options (2):

ℹ️ Final price per option is set on AliExpress.

🚚 Shipping to Israel: $2.10 · 9–17 days (live from AliExpress)

84/100⭐ RecommendedInstaShop Score

Rating

Sales volume

Discount

Computed by InstaShop from the product's real rating, sales volume and discount - an independent editorial signal, not a guarantee. How it is calculated

Enhance your home security with this reliable Zigbee sensor, featuring active tamper alerts for added peace of mind. It is perfect for homeowners who want to monitor doors and windows through a smart ecosystem, ensuring your entry points remain protected at all times.

📋 Full specs, sizes, materials & detailed description - on the AliExpress product page →

🌍 International price: $8.34 (AliExpress's international listing). Shipping and any import taxes are shown at checkout. Details

Price historyLowest $8.30 (28.10) · full chart ↓

💡 Why buy · InstaShop analysis

👤 Best for: Smart home enthusiasts looking for a reliable way to monitor entry points or trigger automations.

🚫 Less suitable for: Users who do not own or plan to purchase a dedicated Zigbee hub.

🔎 Check before buying: Verify that your existing hub supports Zigbee 3.0 or Matter bridging for full functionality.

💰 Is the price good? 50% below the store's listed reference price.

Good to know:

Requires a compatible Zigbee hub or gateway
Battery life varies based on trigger frequency

⭐ Quality & trust: 98.7% positive feedback from 522 AliExpress buyer reviews. Updated daily.

🚚 Tracked shipping · 🔒 AliExpress Buyer Protection · Shipping, customs & returns →

What AliExpress buyers say

98.7%

positive feedback

522 reviews · 2k+ sold recently

The data comes from AliExpress and is updated daily. Full reviews, including buyer photos, are on the AliExpress product page.

See reviews on AliExpress →

InstaShop is a catalog that links to AliExpress. Purchase, shipping and warranty are provided solely by the AliExpress seller; some links are affiliate links (the price to you doesn't change). Terms of Use

📈 Price history: is the discount real?

✓ Good price

Based on InstaShop's daily price tracking on AliExpress since 21.10.2026 · 9 measurements

Today's price

$8.34

checked 29.10

Lowest

$8.30

28.10

Average · 9 measurements

$8.38

21.10–29.10

We have tracked this product's price for 9 days, since 21.10.2026. The lowest was $8.30 (on 28.10.2026), the average $8.38 and the highest $8.43. Today's price, $8.34, is close to the average price.

All 9 measurements as a table

Date	Price	Change
29.10.2026	$8.34	↑ $0.04
28.10.2026	$8.30	↓ $0.13
27.10.2026	$8.43	↑ $0.02
26.10.2026	$8.41	–
25.10.2026	$8.41	–
24.10.2026	$8.41	↑ $0.06
23.10.2026	$8.35	–
22.10.2026	$8.35	↓ $0.03
21.10.2026	$8.38	–

The final price is set by AliExpress. · How we check fake discounts

🧾 From our price tracking

Price now: $8.34 · About usual (within 2% of the $8.38 average)
Last 30 days: low $8.30 · average $8.38
Tracked since: 21.10.2026 · 9 daily checks
Lowest price: $8.30 (28.10.2026)
Price drops: once
At the current price: 2 days ($8.34)
Listed discount: 50% - not real: the "original" price was never charged while we tracked it

Real data only: one price check per day on AliExpress, international listing, in US$.

🔍 In-depth analysis

The SONOFF SNZB-04PR2 SenseGuard DW Gen2 represents a modern evolution in Zigbee-based home security. As a door and window sensor, its primary function is to monitor the open or closed status of entry points, but this Gen2 version adds a layer of active security with tamper alerts. This feature is particularly valuable for those concerned about intruders attempting to disable the sensor manually. With a high volume of orders and a very strong buyer rating, the product has established itself as a reliable choice within the Sonoff ecosystem, known for balancing functionality with accessible pricing.

Technically, this device leverages the Zigbee protocol, which is favored for its low power consumption and local processing capabilities. The mention of Matter Bridge support via Apple Home indicates that while it may require a compatible hub, it is designed to play well with broader smart home ecosystems. This makes it a flexible component for users who want to trigger complex automations, such as turning on lights when a door opens or receiving immediate smartphone notifications during a potential security breach.

✅ Pros

Exceptional buyer rating from a large pool of orders suggests high manufacturing consistency.
Gen2 hardware includes active security features like tamper alerts for better protection.
Broad compatibility potential via Matter Bridge support for Apple Home users.
Zigbee protocol ensures fast response times and minimal impact on battery life.

Cons and cautions

Requires a separate Zigbee gateway to function, which adds to the initial setup cost.
The white plastic aesthetic may not blend in perfectly with dark-colored door or window frames.

From our data

Paid shipping to Israel: $2.10 (per the AliExpress shipping quote)
2 variants on one listing: price and spec change with the option you pick

This analysis is written with an AI model from the product data (name, category, price, rating and orders), not from a hands-on test. How we choose and score

Who it's for: This sensor is ideal for smart home enthusiasts who already use a Zigbee gateway and want a reliable, highly-rated device to secure their perimeter. It is perfect for those prioritizing tamper detection and ecosystem compatibility through Matter bridges.

Who should skip it: It is not suitable for users who do not own a Zigbee-compatible hub or those looking for a standalone Wi-Fi sensor that connects directly to a router without additional hardware.

🔎 Check before you buy

Confirm the specific battery type required for this Gen2 model and if it is included in the package.
Verify which specific Sonoff or third-party Zigbee hubs are required to enable the Matter Bridge functionality.
Ask the seller about the maximum gap distance allowed between the magnet and the sensor for reliable triggering.
Clarify if the tamper alert is a physical button or an internal electronic sensor.

💰 Value verdict: Given the high order volume and the near-perfect rating, this sensor offers excellent value. The current discount makes it a competitive choice for scaling up home security. You are paying for a proven, updated second-generation device that outperforms generic alternatives in both reliability and integration options.

💡 Tips

Test the signal strength at the intended installation point before permanently mounting the sensor with adhesive.
Ensure the sensor and magnet are aligned according to the markings on the casing to avoid false triggers.

Questions about this product

Does this sensor work directly with the Apple Home app?

It requires a compatible Matter-enabled Zigbee bridge to appear in the Apple Home app; it does not connect directly via Bluetooth or Wi-Fi.

What happens if someone tries to remove the sensor from the door?

The SenseGuard Gen2 features tamper alerts designed to notify your smart home system immediately if the device is moved or interfered with.

Can I use this on a sliding metal gate?

While it works on many surfaces, metal can sometimes interfere with Zigbee signals or the internal magnet. You should verify the mounting requirements with the seller for metal installations.

❓ Questions & Answers

What does it cost in US dollars?

$8.34 - AliExpress's international price at our latest check (29.10.2026). The exact amount in your currency, with shipping, is shown at AliExpress checkout.

Shipping and import taxes to my country?

Delivery to your address, its cost and time depend on the seller and your country; import duty/VAT depends on your country's rules (in the EU, the UK and Australia VAT/GST is usually collected at AliExpress checkout). All of it is shown before you pay.

Is this price tracked?

Yes. We have checked this listing's price 9 times since 21.10.2026 - see the price history and the tracking facts on this page.

Shipping, import taxes, returns & Buyer Protection - full answers →