Smoke & CO Detectors · Head to head

Heiman HS1SA-E Zigbee Smoke Alarm vs X-Sense SC07-MR Smart Smoke & CO Alarm

Full Smart Smoke & CO Detectors comparison in 2026

Updated October 2026
Data from the official Heiman and X-Sense sites.
2026 verdict
These two alarms take different roads to fire safety, and the X-Sense SC07-MR Smart Smoke & CO Alarm is the more complete device.
X-Sense SC07-MR Smart Smoke & CO Alarm
Winner
X-Sense SC07-MR Smart Smoke & CO Alarm
Buy on Amazon Spain
It watches for smoke and carbon monoxide at once, interconnects with other X-Sense Link+ alarms over RF with no base station, shows status on an LCD and carries a five-year battery backed by a five-year warranty. The Heiman HS1SA-E Zigbee Smoke Alarm covers smoke alone in a much smaller 60 x 60 x 49.2 mm housing, and it is the more flexible one on the smart side: a Zigbee hub brings it into Home Assistant and Samsung SmartThings with automations the X-Sense does not support, while smart control on the X-Sense SC07-MR Smart Smoke & CO Alarm needs a separate X-Sense base station. Pick the X-Sense SC07-MR Smart Smoke & CO Alarm for combined detection and linked alarms across a house, and the Heiman HS1SA-E Zigbee Smoke Alarm for a discreet, low-cost smoke sensor for a Zigbee network.
Works with
Connectivity
vs
Winner
X-Sense SC07-MR Smart Smoke & CO Alarm
X-Sense

X-Sense SC07-MR Smart Smoke & CO Alarm

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Buy on Amazon Spain

Also sold in packs

  • Pack of 2Buy
Works with
Connectivity
  • Wi-Fi 2.4 GHz
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FeatureHeiman HS1SA-E Zigbee Smoke AlarmX-Sense SC07-MR Smart Smoke & CO AlarmWinner
ConnectivityZigbee2.4 GHz WiFi, OtherX-Sense SC07-MR Smart Smoke & CO Alarm
IntegrationsSamsung SmartThings, Home AssistantHome AssistantHeiman HS1SA-E Zigbee Smoke Alarm
ScreenNOYESX-Sense SC07-MR Smart Smoke & CO Alarm
SensorsSmokeSmoke, COX-Sense SC07-MR Smart Smoke & CO Alarm
AlertsFire Alerts, Low Battery AlertsFire Alerts, CO Alerts, Low Battery AlertsX-Sense SC07-MR Smart Smoke & CO Alarm
Built-in LightYESNOHeiman HS1SA-E Zigbee Smoke Alarm
Rating4.64.6Tie
Battery Life5 years5 yearsTie
Built-in SirenYESYESTie
PathlightNONOTie
Steam CheckNONOTie

What the differences mean

Hazards covered

The X-Sense SC07-MR Smart Smoke & CO Alarm senses smoke and carbon monoxide together, while the Heiman HS1SA-E Zigbee Smoke Alarm senses smoke only and leaves carbon monoxide to another device.

Interconnection

The X-Sense SC07-MR Smart Smoke & CO Alarm links to other X-Sense Link+ and Link+ Pro alarms over RF with no base station, so one detecting smoke wakes the house. The Heiman HS1SA-E Zigbee Smoke Alarm is standalone unless a Zigbee hub ties it into automations.

Smart control

A Zigbee hub brings the Heiman HS1SA-E Zigbee Smoke Alarm into Home Assistant and Samsung SmartThings. The X-Sense SC07-MR Smart Smoke & CO Alarm reaches Home Assistant too, but only through a separate X-Sense base station.

Status on the device

The X-Sense SC07-MR Smart Smoke & CO Alarm has an LCD for on-device status, while the Heiman HS1SA-E Zigbee Smoke Alarm has no screen but does carry a built-in light.

Battery and warranty

Both run about five years on CR123A cells. The X-Sense SC07-MR Smart Smoke & CO Alarm backs that with a five-year warranty, while the warranty on the Heiman HS1SA-E Zigbee Smoke Alarm is not documented.

Size

The Heiman HS1SA-E Zigbee Smoke Alarm is a 67 g puck measuring 60 x 60 x 49.2 mm, small enough for a campervan. The X-Sense SC07-MR Smart Smoke & CO Alarm is larger and its dimensions are not published.

Which one to buy if

What owners say

Owners of the Heiman HS1SA-E Zigbee Smoke Alarm keep coming back to how loud it is for its size: reviewers describe it startling them during a test and reliably catching real cooking smoke, all from a body small enough to sit unobtrusively on a hallway or campervan ceiling. They like that it mounts with screws or the supplied adhesive pad in minutes, and that a Zigbee hub turns it into a proper smart sensor for Home Assistant or Samsung SmartThings with low-battery alerts. The recurring gripe is the battery, with several owners reporting life below the rated years and others struggling to source the exact replacement cell, so it is worth keeping a spare. A smaller number mention the adhesive plate loosening with vibration.

Frequently Asked Questions

Which is better overall: Heiman HS1SA-E Zigbee Smoke Alarm or X-Sense SC07-MR Smart Smoke & CO Alarm?

The X-Sense SC07-MR Smart Smoke & CO Alarm, because it detects smoke and carbon monoxide in one unit and interconnects with other X-Sense alarms over RF without a base station. The Heiman HS1SA-E Zigbee Smoke Alarm is smaller and integrates with more Zigbee platforms, but it covers smoke only.

What is the biggest difference between the Heiman HS1SA-E Zigbee Smoke Alarm and the X-Sense SC07-MR Smart Smoke & CO Alarm?

Coverage and interconnection. The X-Sense SC07-MR Smart Smoke & CO Alarm senses smoke and carbon monoxide and links to other X-Sense alarms, while the Heiman HS1SA-E Zigbee Smoke Alarm senses smoke only and relies on a Zigbee hub for anything smart.

Does the Heiman HS1SA-E Zigbee Smoke Alarm detect carbon monoxide?

No. It is a smoke-only detector with a photoelectric sensor and no CO sensor or CO alerts, so it should be paired with a separate carbon monoxide alarm.

Do the X-Sense SC07-MR Smart Smoke & CO Alarm units link to each other?

Yes. They interconnect over RF with other X-Sense Link+ and Link+ Pro alarms without the base station, so one alarm detecting smoke sounds the others.

Do these alarms work with Alexa, Google Home or Apple HomeKit?

No. The X-Sense SC07-MR Smart Smoke & CO Alarm works with Home Assistant only, and the Heiman HS1SA-E Zigbee Smoke Alarm works with Home Assistant and Samsung SmartThings through a Zigbee hub. Neither supports Alexa, Google Home, Apple HomeKit or Matter.

Who should buy the Heiman HS1SA-E Zigbee Smoke Alarm?

A buyer who wants a small, discreet smoke alarm that doubles as a Zigbee sensor in a Home Assistant or SmartThings setup.

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