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SMI100-AC 9120B 12pack
16th Apr 2026, 05:54 AM

SMI100-AC /9120B 12pack

Price may vary by location, shipping cost, and availability.
$169.26

Buy @ amazon.com
Highest: $291.56
Average: $150.10
Lowest: $89.00

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Based our analysis and observation, there is 54.83% chance that the price of SMI100-AC 9120B 12pack will increase. Price of product might fluctuate between 3% and 7% of current price.*

Price History Graph

Offer Price Prices
Lowest: -
Average: -
Highest: -

Price History Information

You can check the price history of SMI100-AC /9120B 12pack here. This product's current Price in USA is $169.26. The average and highest prices are $150.10 and $291.56 respectively.

Lowest Ever Price $89.00
17th Jun 2022
Average Price $150.10
Based on 1688 days price tracking
Highest Price $291.56
26th Dec 2025

Current Price in USA

Price $169.26

Recent Price Drops on SMI100-AC /9120B 12pack

Price Drop 24th Feb 2026
$168.20 → $158.90
5.53% drop
Price Drop 26th Dec 2025
$291.56 → $173.02
40.66% drop
Price Drop 30th Oct 2025
$189.96 → $173.02
8.92% drop
Price Drop 26th Sep 2025
$168.02 → $154.99
7.76% drop
Price Drop 20th Apr 2025
$198.18 → $181.69
8.32% drop
Price Drop 28th Jan 2025
$198.17 → $186.80
5.74% drop
Price Drop 17th Oct 2024
$205.99 → $100.00
51.45% drop
Price Drop 3rd Sep 2024
$208.26 → $194.99
6.37% drop
Price Drop 29th Jul 2024
$218.00 → $199.50
8.49% drop
Price Drop 26th Jul 2024
$199.50 → $150.60
24.51% drop
Price Drop 15th Jul 2024
$199.99 → $179.99
10% drop
Price Drop 26th Jun 2024
$178.00 → $155.00
12.92% drop
Price Drop 19th Jun 2024
$199.99 → $152.99
23.5% drop
Price Drop 11th Jun 2024
$199.99 → $116.99
41.5% drop
Price Drop 5th Jun 2024
$199.99 → $152.99
23.5% drop
Price Drop 2nd Jun 2024
$154.99 → $116.99
24.52% drop
Price Drop 19th Mar 2024
$115.00 → $106.26
7.6% drop
Price Drop 11th Mar 2024
$118.26 → $109.00
7.83% drop
Price Drop 4th Jan 2024
$125.00 → $116.99
6.41% drop
Price Drop 31st Oct 2023
$112.50 → $97.68
13.17% drop
Price Drop 12th Jul 2023
$109.17 → $102.17
6.41% drop
Price Drop 12th May 2023
$115.26 → $108.50
5.87% drop
Price Drop 1st May 2023
$125.00 → $115.75
7.4% drop
Price Drop 21st Mar 2023
$114.90 → $104.15
9.36% drop
Price Drop 24th Jan 2023
$119.99 → $112.99
5.83% drop
Price Drop 15th Jan 2023
$134.99 → $119.00
11.85% drop
Price Drop 12th Jan 2023
$134.99 → $113.99
15.56% drop
Price Drop 1st Jan 2023
$134.99 → $113.99
15.56% drop
Price Drop 29th Dec 2022
$134.99 → $115.75
14.25% drop
Price Drop 10th Jul 2022
$126.00 → $112.75
10.52% drop
Price Drop 23rd Jun 2022
$99.00 → $89.00
10.1% drop
Price Drop 16th Jun 2022
$112.59 → $89.00
20.95% drop
Price Drop 12th Apr 2022
$111.00 → $99.00
10.81% drop
Price Drop 7th Apr 2022
$126.99 → $115.75
8.85% drop
Price Drop 6th Feb 2022
$115.75 → $106.26
8.2% drop
Price Drop 30th Jan 2022
$115.75 → $104.15
10.02% drop
Price Drop 9th Jan 2022
$115.75 → $109.26
5.61% drop
Price Drop 30th Dec 2021
$126.99 → $109.26
13.96% drop
Price Drop 23rd Dec 2021
$126.99 → $115.75
8.85% drop
Price Drop 25th Nov 2021
$115.75 → $108.45
6.31% drop
Price Drop 26th Sep 2021
$111.20 → $104.38
6.13% drop

Product Information

Details

Product Name SMI100-AC /9120B 12pack
Store Product Code B07B4CDBLD
Store Name amazon.com
Brand First Alert
Rating 9.4 / 10
Category Smoke Detectors & Fire Alarms
Product Manufacturer First Alert / BRK Brands, Inc.
Model Number 9120BFF-12
Color White
Size 12-Pack
Dimensions 2.2"D x 5.6"W x 5.6"H

Features

  • Keep your family safe with this 12-pack of hardwired smoke alarms; The battery backup means constant monitoring, even if there's a power failure
  • Equipped with an ionization sensor, this smoke alarm reliably detects smoke from fast-flaming fires and alerts you with an 85-decibel alarm
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • Can connect to other compatible BRK or First Alert smoke detectors, to ensure all alarms will sound when smoke is detected
  • Simple to use, with a single test/silence button, and side-load battery compartment; Tamper-resistant locking brackets and universal mounting brackets make installation easy
  • First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
  • Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety

Images

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Image of SMI100-AC /9120B 12pack

Rating and Reviews

9.4 Based on 826 reviews

SMI100-AC 9120B 12pack has 9.4 rating out of 10. This average rating is consist of 826 individual ratings. You can rate this product at product review page.

* Predictions is created on based of past prices and trends, it does not guarantee that it will happen. These are just prediction for theoretical information only.
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