We may earn a small commission on purchases made through our links.

Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.

x
Sorry, Something went wrong!
SITERWELL

SITERLINK Smoke Detectors with 9V Replaceable Battery UL217 GS509A 1 Pack

✅ In stock 📉 Price recently dropped
F
Grade
💤 Not a Deal
10.36/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$19.52
Listed $19.52
Analysis Confidence 100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Nov 10, 2026 9:18 AM · Prices & availability subject to change

Is This a Good Price on Amazon?

💤 Not a Deal
  • 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
  • 💰At 29% above its usual rate, this is currently priced higher than what most shoppers have paid.
  • 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
  • 📈The direction is downward at the moment; if that holds, an even better price may surface — though timing the market is never certain.

How We Scored This Deal

Price Competitiveness 0/28
Recent Value 0/22
Market Standing 0.36/20
Deal Strength 0/20
Momentum 10/10

📝 Product Overview

🏪 Sold by Siterlink
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

✓SITERLINK Smoke Detectors
✓REDUCE FALSE ALARMS, ENSURE ACCURACY: the use of dual light wave detection technology, can accurately determine the smoke generated by non-fire, this smoke alarm will be on the temperature, humidity, dust or other changes in the independent AI learning to compensate for the maintenance of constant sensitivity, reduce the rate of false alarms.
✓ONE BUTTON MUTE 10 HOURS, REDUCED DISTURBANCE: No more worrying about sudden low voltage and faulty alarm sound,we have 10 hours mute function, when we are sleeping or can't deal with it in time, press the test/silence button, you can prolong to change the batteries or deal with the cause of the false alarm.
✓QUICK AND EASY INSTALLATION: Battery operated smoke alarms require no rewiring and can be installed in seconds using the included 3M Sticker or easily mounted on a wall or ceiling using the included screws, anchors and mounting brackets. Please do not install in damp, drafty, covered areas.
✓TRUSTED SMOKE ALARM: According to statistics, a fire occurs every 38S in the U.S. Installing professional smoke alarms is important for preventing fires, improving survival rate and safeguarding life and property.
✓Please reach out if you have any questions; we are here to provide support at any time

⚙️ Specifications

Brand
SITERWELL
Style
Replaceable Battery(NEW)
Product Dimensions
1.4"D x 3.92"W x 3.92"H
Item Weight
9.6 ounces
Manufacturer
‎Siterwell Electronics Co.,Limited
UPC
725576460798
Item model number
GS509A
Batteries
1 9V batteries required. (included)
Size
1 PACK
Batteries Included?
Yes
Batteries Required?
Yes
F
$19.52
Check Deal →