Home Assistant has announced Heiman as a new “Work With Home Assistant” partner through Matter connectivity. It strengthens support for security-focused devices in the Home Assistant ecosystem with local and open home standards.
Heiman is a long-established supplier of smart home security sensors and alarms, a category that carries higher regulatory and certification barriers than most consumer smart devices. Smoke alarms and carbon monoxide (CO) detectors, in particular, must comply with strict regional standards before entering the market. Bringing these products into a compatibility program marks an important step for Matter adoption in safety-critical device categories, with benefits extending beyond Home Assistant users.
A spec promoter behind the scenes
The relationship between Heiman and Home Assistant is long-standing; Heiman engineers have been contributing to Matter-related development for some time. Ongoing activity is visible in public GitHub repositories, including Home Assistant Core and Open Home Foundation (OHF) Matter Server. Much of this work has been driven by a small group inside the company, mainly one named Leo Xie, the Software Engineering Manager at Heiman.
These contributions have helped expand Matter feature support in Home Assistant and the Matter Server, covering both standard clusters and vendor-specific extensions. Examples include support for CO alarm states and temporary alarm mute features, which are important for real-world usability in safety devices.
A better experience with Home Assistant
“Work With” programs typically require additional validation and close cooperation between device makers and platform teams. In this case, Heiman worked directly with Home Assistant to ensure that certified devices behave reliably under real-world conditions.
This type of collaboration plays an important role as Matter continues to mature. Close alignment between device vendors and ecosystem developers helps ensure that important sensor readings and controls are consistently exposed across platforms, reducing the risk of missing features or inconsistent behavior when users mix devices or ecosystems.
And this extra testing is especially important for security devices. For alarms and safety sensors, even brief failures can undermine user trust.
Home Assistant says all certified devices were tested using an official reference setup, consisting of Home Assistant hardware (Green and ZBT-2 Dongle) paired with its certified Matter integration, with Thread connectivity handled through its supported border router configuration. The goal is to ensure consistent behavior from onboarding through daily use.
For users, the result is higher confidence that certified devices will work as expected, without the trial-and-error often associated with early Matter deployments.
Certified devices
Seven Heiman products have received the “Work With Home Assistant” badge so far. The list covers most of the company’s core Matter security and sensor lineup, including smoke alarms, CO alarms, and environmental sensors.
The specific models include:
- Heiman Smart Smoke Alarm (USA) S1-M
- Heiman Smart Smoke Alarm (EU and China) HS1SA-M
- Heiman Smart Carbon Monoxide Alarm (USA) C1-M
- Heiman Smart Carbon Monoxide Alarm (EU and China) HS-720ES-M
- Heiman Motion Sensor M1-M
- Heiman Water Leak Sensor L1-M
- Heiman Humidity and Temperature Sensor H1-M
Heiman Smart Smoke Detector
Dual-photoelectric, wire-free smoke alarm with local no-cloud notifications, 85 dB siren, Test/Silence button, CR123A power, UL 217 9th/FCC/CSFM certifications, and UL94 V-0 housing.
Heiman Smart motion sensor
A smart motion sensor with temperature compensation and real-time alarm notifications for reliable security monitoring.
Heiman Smart Carbon Monoxide Sensor
A smart carbon monoxide detector with audible and visual alarms, plus app-based monitoring for real-time safety alerts.
The list includes most of Heiman’s core Matter products, except for the contact sensor D1-M. And as a solution provider, Heiman also supplies hardware to other brands using the same internal designs. Rebranded versions sold by partners, including SmartSetup, are expected to benefit indirectly from the same platform-level improvements.
Why Heiman matters as a partner
Most smart home brands rely on solution providers rather than designing hardware in-house. For regulated devices like smoke and CO alarms, that dependency is even stronger, as certification requirements vary by region and are costly to maintain.
Heiman has previously focused on Zigbee and Wi-Fi products but has invested more heavily in Matter over Thread in recent years. This kind of decision can influence broader adoption, as solution providers often shape what devices reach the market more than individual brands do.
Certifying Matter devices under the WWHA program signals that commitment not only to Home Assistant users, but also to Heiman’s downstream clients, including smart building integrators and consumer brands.
A brief take from my daily use
I currently run most of Heiman’s Matter sensor lineup at home. With recent firmware releases, the devices have been stable and deliver long battery life. What stands out among rivals is the tiny, coin-size design, flexible to install at home.
Firmware updates are delivered via Matter itself. Last year, Heiman released four official updates and numerous beta builds through the Matter Distributed Compliance Ledger (DCL), according to Matter Alpha database. I have managed to update some Heiman devices using Apple Home, SmartThings, and Home Assistant.
As of the press time, some certified products, including the temperature and humidity sensor, are temporarily out of stock on Amazon and other partner retailers. The restocking is already underway as we learnt.
(Source: Home Assistant, GitHub, Matter Alpha; Image: Home Assistant, Matter Alpha/Ward Zhou)
