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Side-by-side comparison · Updated for 2026

Smoke & CO Alarms with Home Assistant Integration

Looking for smoke & co alarms with Home Assistant Integration? Compare features, specs, and top-rated models to find the best one for your smart home in 2026.

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20
Products
8
Brands
33%
Top discount
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Title
  • Basic Information
  • Rating
  • Reviews
  • Launch Year
  • Warranty
  • Model
  • Company
  • Brand
  • Headquarters
  • Size & Materials
  • Dimensions
  • Weight
  • Power
  • Wired
  • Battery Type
  • Battery Life
  • Connectivity
  • 2.4 GHz WiFi
  • 5 GHz WiFi
  • Bluetooth
  • Zigbee
  • Z-Wave
  • Thread Protocol
  • Other
  • Integrations
  • Google Home
  • Alexa
  • Apple HomeKit
  • Samsung SmartThings
  • Home Assistant
  • Matter
  • Display
  • Screen
  • Screen Type
  • Sensors
  • Smoke
  • CO
  • Occupancy
  • Temperature
  • Humidity
  • Air Quality
  • Ambient Light
  • Motion
  • Alerts
  • Fire Alerts
  • CO Alerts
  • Low Battery Alerts
  • Temperature Alerts
  • Air Quality Alerts
  • Features
  • Built-in Siren
  • Built-in Light
  • Tests Itself
  • Pathlight
  • Steam Check
  • Automations
  • Heiman Matter Smoke Detector S1-TM
    Heiman

    Matter Smoke Detector S1-TM

    $49.98
    BUY NOWCheck price
    • 4.8
    • 14
    • 2026
    • ?
    • S1-TM
    • Heiman
    • China
    • Ø2.8 × 1.5 in
      (Ø70 × 37 mm)
    • 7.8 oz
      (220 g)
    • NO
    • CR123A
    • 3.5 years
    • NO
    • NO
    • NO
    • NO
    • NO
    • Thread Border Router required
    • NO
    • YES
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
    • -
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • YES
    • YES
  • Google Nest Protect (Wired)
    Best Seller
    Google

    Nest Protect (Wired)

    $499.99
    BUY NOWCheck price
    • 4.6
    • 4,630
    • 2015
    • 2 years
    • S3003LWES
    • Google
    • USA
    • 5.3 × 5.3 × 1.5 in
      (134 × 134 × 38.5 mm)
    • 13.2 oz
      (375 g)
    • YES
    • 3x AA
    • -
    • YES
    • NO
    • YES
    • NO
    • NO
    • NO
    • 802.15.4 wireless interconnect
    • YES
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • -
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
    • NO
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
  • X-Sense Wi-Fi Carbon Monoxide Alarm
    Top Rated
    X-Sense

    Wi-Fi CO Alarm

    €39.87
    BUY NOWCheck price
    • 4.6
    • 1,477
    • 2022
    • 5 years
    • XC04-WX
    • X-Sense
    • China
    • 5.3 × 2.5 × 0.9 in
      (135 × 63 × 24 mm)
    • 3 oz
      (85 g)
    • NO
    • CR123A
    • 1 year
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • LCD
    • NO
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • NO
    • NO
  • X-Sense SC07-MR Smart Smoke & CO Alarm
    X-Sense

    SC07-MR Smart Smoke & CO Alarm

    €43.99
    BUY NOWCheck price
    • 4.6
    • 692
    • 2025
    • 5 years
    • SC07-MR
    • X-Sense
    • China
    • ?
    • ?
    • NO
    • CR123A
    • 5 years
    • X-Sense Base Station required
    • NO
    • NO
    • NO
    • NO
    • NO
    • RF wireless interconnect
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • LCD
    • YES
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • YES
    • YES
    • NO
    • NO
    • YES
    • NO
    • ?
    • NO
    • NO
    • NO
  • Heiman HS1SA-E Zigbee Smoke Alarm
    Top Rated
    Heiman

    HS1SA-E Zigbee Smoke Alarm

    €34.99
    BUY NOWCheck price
    • 4.5
    • 5,145
    • 2018
    • ?
    • HS1SA-E
    • Heiman
    • China
    • 2.4 × 2.4 × 1.9 in
      (60 × 60 × 49.2 mm)
    • 2.4 oz
      (67 g)
    • NO
    • CR123A
    • 5 years
    • NO
    • NO
    • NO
    • Zigbee Hub required
    • NO
    • NO
    • NO
    • ?
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • NO
    • YES
  • 16% OFF
    X-Sense WiFi Smoke & CO Detector
    X-Sense

    WiFi Smoke & CO Detector

    €33.58€39.99
    BUY NOWCheck price
    • 4.5
    • 4,336
    • 2023
    • 5 years
    • SC07-WX
    • X-Sense
    • China
    • 5.7 × 5.7 × 2 in
      (144 × 144 × 50 mm)
    • 1.1 lb
      (480 g)
    • NO
    • CR123A
    • 1 year
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • LCD
    • YES
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • YES
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • NO
    • NO
  • X-Sense Wi-Fi Smoke Alarm
    X-Sense

    Wi-Fi Smoke Alarm

    €24.06
    BUY NOWCheck price
    • 4.5
    • 405
    • 2022
    • 5 years
    • XS01-WX
    • X-Sense
    • China
    • 3.1 × 3.1 × 1.9 in
      (78 × 78 × 48 mm)
    • 3.2 oz
      (92 g)
    • NO
    • CR123A
    • 10 years
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • NO
    • NO
  • Google Nest Protect (Battery)
    Best Seller
    Google

    Nest Protect (Battery)

    $399.99
    BUY NOWCheck price
    • 4.4
    • 7,508
    • 2015
    • 2 years
    • S3000BWES
    • Google
    • USA
    • 5.3 × 5.3 × 1.5 in
      (134 × 134 × 38.5 mm)
    • 13.4 oz
      (379 g)
    • NO
    • 6x AA
    • 2 years
    • YES
    • NO
    • YES
    • NO
    • NO
    • NO
    • 802.15.4 wireless interconnect
    • YES
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • -
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
    • NO
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
  • 25% OFF
    Shelly Plus Smoke Alarm
    Shelly

    Smoke Alarm

    €39.95€53.43
    BUY NOWCheck price
    • 4.4
    • 542
    • 2023
    • 3 years
    • SNSN-0031Z
    • Shelly
    • Bulgaria
    • 3.4 × 3.5 × 1.2 in
      (86 × 88 × 31 mm)
    • 3.4 oz
      (95 g)
    • NO
    • CR123A
    • 5 years
    • YES
    • NO
    • For Pairing
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • NO
    • YES
  • Heiman Interconnected Smoke Alarm S1-R
    Heiman

    Interconnected Smoke Alarm S1-R

    $25.99
    BUY NOWCheck price
    • 4.4
    • 68
    • 2026
    • ?
    • S1-R
    • Heiman
    • China
    • Ø2.8 × 1.5 in
      (Ø70 × 37 mm)
    • ?
    • NO
    • CR123A
    • 8.3 years
    • Heiman Gateway required
    • NO
    • NO
    • NO
    • NO
    • NO
    • RF wireless interconnect
    • Heiman Gateway required
    • NO
    • NO
    • Heiman Gateway required
    • Heiman Gateway required
    • NO
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • YES
    • Heiman Gateway required
  • 11% OFF
    Aqara Smart Smoke Detector
    Aqara

    Smart Smoke Detector

    €39.99€44.99
    BUY NOWCheck price
    • 4.3
    • 571
    • 2023
    • 1 year
    • SD-S01E
    • Aqara
    • China
    • 4.1 × 1.7 in
      (104.6 × 42 mm)
    • ?
    • NO
    • CR17450 battery
    • 10 years
    • NO
    • NO
    • NO
    • Zigbee Hub required
    • NO
    • NO
    • NO
    • Aqara Hub required
    • Aqara Hub required
    • Aqara Hub required
    • YES
    • YES
    • Aqara Hub required
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • NO
    • YES
  • Kidde Smart Smoke & CO Detector with Ring
    Kidde

    Smart Smoke & CO Detector with Ring

    $69.97
    BUY NOWCheck price
    • 4.3
    • 458
    • 2025
    • ?
    • RGCUDR-RW
    • Kidde
    • United States
    • 5 × 5 × 2 in
      (127 × 127 × 51 mm)
    • ?
    • NO
    • 2x AA
    • ?
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • -
    • YES
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • YES
    • YES
    • NO
    • NO
    • YES
    • ?
    • ?
    • NO
    • YES
    • ?
  • 10% OFF
    Heiman Interconnected CO Alarm C1-R
    Heiman

    Interconnected CO Alarm C1-R

    $26.99$29.98
    BUY NOWCheck price
    • 4.1
    • 25
    • 2026
    • ?
    • C1-R
    • Heiman
    • China
    • Ø2.8 × 1.5 in
      (Ø70 × 37 mm)
    • ?
    • NO
    • CR123A
    • 10 years
    • Heiman Gateway required
    • NO
    • NO
    • NO
    • NO
    • NO
    • RF wireless interconnect
    • Heiman Gateway required
    • NO
    • NO
    • Heiman Gateway required
    • Heiman Gateway required
    • NO
    • NO
    • -
    • NO
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • Heiman Gateway required
  • 17% OFF
    Heiman Smart CO Alarm
    Heiman

    Smart CO Alarm

    $49.99$59.99
    BUY NOWCheck price
    • 3.7
    • 21
    • 2025
    • ?
    • C1-M
    • Heiman
    • China
    • ?
    • 4.8 oz
      (136 g)
    • NO
    • CR123A
    • 10 years
    • NO
    • NO
    • NO
    • NO
    • NO
    • Thread Border Router required
    • NO
    • YES
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
    • -
    • NO
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • NO
    • YES
  • Heiman Matter Smoke Detector S1-M
    Best Seller
    Heiman

    Matter Smoke Detector S1-M

    $39.99
    BUY NOWCheck price
    • 3.6
    • 78
    • 2026
    • ?
    • S1-M
    • Heiman
    • China
    • 2.7 × 1.7 × 2.7 in
      (68 × 43 × 69 mm)
    • 3.5 oz
      (100 g)
    • NO
    • CR123A
    • 5 years
    • NO
    • NO
    • NO
    • NO
    • NO
    • Thread Border Router required
    • NO
    • YES
    • YES
    • YES
    • YES
    • YES
    • YES
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • YES
    • YES
  • First Alert SMCO410 Smoke Detector & CO Alarm
    First Alert

    SMCO410 Smoke Detector & CO Alarm

    $64.99
    BUY NOWCheck price
    • 3.5
    • 268
    • 2025
    • 10 years
    • SMCO410
    • First Alert
    • United States
    • 5 × 2.1 × 5 in
      (127 × 54 × 127 mm)
    • 9.9 oz
      (280 g)
    • NO
    • Sealed lithium
    • 10 years
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • -
    • YES
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • YES
    • YES
    • NO
    • NO
    • YES
    • NO
    • NO
    • NO
    • YES
    • NO
  • Kidde Smart Smoke + Indoor Air Quality Alarm
    Kidde

    Smart Smoke + Indoor Air Quality Alarm

    $108.32
    BUY NOWCheck price
    • 3.3
    • 199
    • 2023
    • 10 years
    • P4010ACSAQ-WF
    • Kidde
    • United States
    • 5.6 × 5.6 × 1.9 in
      (142 × 142 × 49 mm)
    • 11.2 oz
      (318 g)
    • YES
    • Backup battery
    • ?
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • YES
    • YES
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • YES
    • YES
    • YES
    • ?
    • NO
    • NO
    • ?
  • Kidde Smart Smoke Alarm (P4010ACS-WF)
    Kidde

    Smart Smoke Alarm (P4010ACS-WF)

    $40.79
    BUY NOWCheck price
    • 3.2
    • 316
    • 2023
    • 10 years
    • P4010ACS-WF
    • Kidde
    • United States
    • ?
    • ?
    • YES
    • Sealed lithium backup battery
    • 10 years
    • YES
    • NO
    • ?
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • NO
    • ?
    • NO
    • NO
    • YES
  • 33% OFF
    X-Sense SD19-MN Interconnected Smart Smoke Alarm
    X-Sense

    SD19-MN Interconnected Smart Smoke Alarm

    $21.99$32.99
    BUY NOWCheck price
    • -
    • -
    • 2026
    • 5 years
    • SD19-MN
    • X-Sense
    • China
    • ?
    • ?
    • NO
    • CR17450
    • 10 years
    • X-Sense Base Station required
    • NO
    • NO
    • NO
    • NO
    • NO
    • RF wireless interconnect
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • NO
    • -
    • YES
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • NO
    • YES
    • NO
    • YES
    • NO
    • NO
    • YES
    • NO
    • ?
    • NO
    • NO
    • NO

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