Trending:
fan
cuisinart
sonos
charger

Trending

  • fan
  • cuisinart
  • sonos
  • charger
  • coffee
  • air filter
  • watch
  • flashlight
  • light
  • tylt
  • Best Sellers
  • New Arrivals
  • Clearance
  • Membership
  • Your Account
  • Support

Account

  • Sign in with Email
  • Sign in with Apple
  • Sign in with Facebook
  • By continuing, you agree to our terms of use and privacy policy.

Help

  • Support
  • Frequently Asked Questions
  • Warranty & Returns

Membership

$8.99/month gets you free shipping and more.

  • What Is Membership?
  • Become a Member

Search

  • Trending

    • fan
    • cuisinart
    • sonos
    • charger
    • coffee
    • air filter
    • watch
    • flashlight
    • light
    • tylt

Market

  • Best Sellers
    1. Calphalon Select 8-Piece Hard-Anodized Nonstick Cookware Set
    2. 2-Pack: Verbatim 15-Outlet Power Tower with 11 AC, 2 USB-C and 2 USB-A
    3. 120-Pack: Prime Hydration+ Sticks
    4. 2-Pack: Jill & Ally Pickleball Paddles
    5. AllSett Health Sapphire Ice Cooling IPL Laser Hair Removal Device
    6. 2-Pack: TYLT 24oz Power Water Bottle with Built-In Phone Chargers
    7. Laura Geller 4-Piece Balance-N-Brighten Set
    8. Duracell 100-Watt Heavy Duty Briefcase Solar Panel
    9. 4-Pack: Vega Protein + Supergreens
    10. Vornado ATOM 1 Oscillating 10" Tower Air Circulator
  • New Arrivals
    1. LAUD Sonoris Premium Bluetooth Over-Ear Headphones NEW 6 days ago
    2. Moonstruck Short Sleeve Notch Collar Pajama Set NEW 6 days ago
    3. Lamo Margot Water Resistant Suede Platform Boot NEW 6 days ago
    4. Malibu Skye Claire Handbag with Whipstitching Detail Handle NEW 6 days ago
    5. 2-Pack: Sofft Compression Mid-Thigh Shorts NEW 6 days ago
    6. Lamo Harrison Moc Men's Slip-On Mocassin NEW 6 days ago
    7. Beverly Hills Polo Club All-in-One Trimmer NEW 6 days ago
    8. Kenneth Cole Puffer Jacket with Attached Hood NEW 6 days ago
    9. Yves Saint Laurent 2-Piece Black Opium and Libre Flowers & Flames EDP Spray Set NEW 6 days ago
    10. Urbanista Oakland Wireless Bluetooth Headphone Adapter NEW 11 hours ago
  • Clearance
    1. Bernardo Mid-Length Hooded Puffer Jacket with Bib
    2. Gucci Rectangular Transparent Blue Tortoiseshell Sunglasses
    3. GUCCI Large Gold Hexagonal Sunglasses
    4. 2-Pack: NAK Hair Volume Shampoo + Conditioner
    5. Concierge Collection Muslin Cotton Throw
    6. 2-Pack: Bethlehem Lights Multi-Purpose Holiday Storage Box 1 left
    7. Mr. Christmas Illuminated Nostalgic Wooden Storefronts
    8. Martha Stewart 2-Piece Flameless 6" Pinecones and Evergreen
    9. Bethlehem Lights Double Wreath or Garland Storage Bag 5 left
    10. 3-Pack: Luminara 8" Flameless Nutcracker Candles
  • SideDeal
  • SideDeal Market

Hakol 4-In-1 2000mAh Smoke & Carbon Monoxide Detector

Product image Product image Product image Product image Product image Product image Product image Product image Product image

  1. Product image
  2. Product image
  3. Product image
  4. Product image
  5. Product image
  6. Product image
  7. Product image
  8. Product image
  9. Product image
$60 save 57%
$25.99

Protect what matters most with the HAKINAKU 4-in-1 CO & Smoke Detector, designed to monitor carbon monoxide, smoke, temperature, and humidity in real time. Featuring a clear 2.1” HD display, loud 85dB alarm, plug-and-play setup, and a built-in 2000mAh rechargeable backup battery for up to 120 hours of protection during power outages, it delivers reliable, around-the-clock safety for your home and family.

Features

  • The HAKINAKU 4-in-1 detector integrates carbon monoxide, smoke, temperature, and humidity sensors to monitor your indoor air quality and safety in real time
  • Designed with a US standard plug compatible with 110V–220V outlets, it works instantly when plugged into bedrooms, kitchens, living rooms, basements, or hotel rooms
  • A built-in rechargeable lithium battery provides up to 120 hours of backup power during outages while saving on costly disposable battery replacements
  • The clear HD screen shows real-time data including CO levels (ppm), smoke indicator bar, humidity, temperature, alarm status, and warning icons for quick and easy reading
  • Featuring independent smoke and CO sensors with a loud 85dB alarm, this detector continuously safeguards your home environment for added peace of mind

Specifications

Detection Functions Carbon monoxide (CO), Smoke, Temperature, Humidity
Sensor Type Independent CO Sensor and Smoke Sensor
Display 2.1-Inch HD Digital Screen
Power Supply Plug-In AC Power (110V–220V)
Backup Battery Built-in 2000mAh Rechargeable Lithium Battery
Backup Working Time Up to 120 hours
Alarm Volume 85 dB

What’s included?

  • 1x Hakol 4-In-1 2000mAh Smoke & Carbon Monoxide Detector

Warranty

90 days

Estimated Delivery Date

Monday, Mar 30 - Wednesday, Apr 1

Best Sellers

Calphalon Select 8-Piece Hard-Anodized Nonstick Cookware Set
$190 $99.99 save 47%

Calphalon Select 8-Piece Hard-Anodized Nonstick Cookware Set

2-Pack: Verbatim 15-Outlet Power Tower with 11 AC, 2 USB-C and 2 USB-A
$100 2 for $29.99 save 70%

2-Pack: Verbatim 15-Outlet Power Tower with 11 AC, 2 USB-C and 2 USB-A

120-Pack: Prime Hydration+ Sticks
$120 120 for $29.99 save 75%

120-Pack: Prime Hydration+ Sticks

2-Pack: Jill & Ally Pickleball Paddles
$140 2 for $19.99 save 86%

2-Pack: Jill & Ally Pickleball Paddles

AllSett Health Sapphire Ice Cooling IPL Laser Hair Removal Device
$250 $69.99 save 72%

AllSett Health Sapphire Ice Cooling IPL Laser Hair Removal Device

2-Pack: TYLT 24oz Power Water Bottle with Built-In Phone Chargers
$100 2 for $19.99 save 80%

2-Pack: TYLT 24oz Power Water Bottle with Built-In Phone Chargers

Laura Geller 4-Piece Balance-N-Brighten Set
$116 $29.99 save 74%

Laura Geller 4-Piece Balance-N-Brighten Set

Duracell 100-Watt Heavy Duty Briefcase Solar Panel
$300 $99.99 save 67%

Duracell 100-Watt Heavy Duty Briefcase Solar Panel

4-Pack: Vega Protein + Supergreens
$100 4 for $39.99 save 60%

4-Pack: Vega Protein + Supergreens

You May Also Like

Cheaper Than Amazon

Cheaper Than Amazon

Every item on this page costs less than Amazon. We checked.

Pack Light, Live Large

Pack Light, Live Large

Carry-ons, duffels, luggage sets, and travel gear—everything you need to get up and go.

Your Home Office Deserves Better

Your Home Office Deserves Better

Charging stations, organizers, and upgrades your workspace has been waiting for.

All Under $30

All Under $30

Everything here is under $30. Shop guilt-free.

VEVOR Variety Sale

VEVOR Variety Sale

From toddler climbing sets to massage guns—VEVOR has serious range.

Kitchen Things, But Make Them Good

Kitchen Things, But Make Them Good

Knives, cookware, blenders, and gadgets from brands that actually know their way around a kitchen.

End Of Season Sale

End Of Season Sale

Winter's almost over — grab the cozy stuff at the lowest prices we've ever offered.

Host Mode: Activated

Host Mode: Activated

Everything you need to throw the party they'll keep talking about.

The Aduro Showcase

The Aduro Showcase

28 ways to power up, tune in, stream, and unwind. Aduro's got range.

Spring Has Entered the Chat

Spring Has Entered the Chat

Solar stakes, garden gnomes, misting fans, and more — your outdoor space gets a glow-up.

Very Cuisinart

Very Cuisinart

From popcorn to pasta, they thought of everything.

Going Going GONE!

Going Going GONE!

Your excuse to finally snag that one thing before it disappears

Your Yard Called, It Needs These

Your Yard Called, It Needs These

Everything to make the neighbors slightly jealous.

Back to top

SideDeal

  • Best Sellers
  • New Arrivals
  • Clearance

Account

  • Sign in withEmail
  • Sign in withApple
  • Sign in withFacebook
  • By continuing, you agree to our terms of use and privacy policy.

Help

  • Frequently Asked Questions
  • Support
  • Returns
  • Affiliates

Reviews

  1. Eddie Bauer Women's Sherpa Lined Clog Slippers
    ★ ★ ★ ★ ★
    Awesome!

    Look and feel great 👍

  2. 10-Pack: SkinnyDipped Pumpkin Spice Almonds
    ★ ★ ★ ★ ★
    Very tasty

    Tasty coated almonds! ... and the pumpkin spice doesn't overwhelm.

  3. Steeltime Unisex Genuine Leather Serenity Prayer Crossbody Bag
    ★ ★ ★ ★ ★
    Very Nice

    I just received my leather Serenity Prayer Crossbody Bag and its even more that what I expected. The quality is very nice and I highly recommend buying this item

See more reviews → BBB Logo

Membership

$8.99/month membership gets you free shipping at these stores

  •  
  •  
  •  
  •  
  •  
  •  

Social Media

Copyright © 2026 SideDeal. All rights reserved. Privacy Policy | Terms of Use