Dear Matter, Zigbee2mqtt and HA experts and fans, This is Leo from Shenzhen Heiman Technology Co., Ltd. we started a new team to focus on the experiences for DIY users, we’ve got a lot of feedback of adding more functions to our smoke alarm, like the mute alarm, remote test and interconnection, etc…

Hi Andreas, Happy New Year! Thanks for your feedback, could you Email me rd02@heiman.com.cn for further support, I will help with that.

hi. I’m trying to understand what are the differences between HM-720 series, and C1 series ? I’m looking for a set of sensors (2x smoke, 1x CO) for my camper where I will have a HA Green. The Heiman website lack user’s guide with technical details, installation guide… And the HM-720 page shows a h…

Thanks for commenting, it used for different Countries. C1 is compliant with with UL certification, it can be sold in the USA, and the HM-720 for EU market. it didn’t has a hard-wired cable in this page, may I ask which model did you refer to? [image] Matter-Compatible Smart Carbon Monoxi…

thank you for your reply. I’m refering to this on the product page: [IMG_8585]

That is Natural GAS sensor, not CO alarm.

I guess the pictures above come from here: [image] Matter-Compatible Smart Carbon Monoxide Alarm HS-720ES Series | Heiman Tech Heiman HS-720ES Smart CO Detector with Matter support for real-time carbon monoxide monitoring and smart home safety. Reliable, connected protection for your fam…

Very nice that you take the time to get feedback this way. I’m a happy user of Heiman smoke alarms and co alarms. Interconnectability would really be great. But you specifically talk about the zigbee variant. Are you planning to do this for the zwave version to?

those are wrong, someone will fix it, thanks for the feed back.

that’s wrong, someone will fix it, it’s battery-powered device, no wire at all. Sorry for the incorrect pictures there.

Thanks for commenting and liking our products. We will actively iterate and update zigbee/matter/wifi and Sub-1G protocols for long term, we may only fix bug for Zwave products now, we are not going to develop new function to Zwave since we can not do much customization on Zwave, we probably use ou…

Heiman zigbee and matter smoke alarm proposal

Hardware

leoXie (leoXie) April 2, 2026, 6:27am 71

that model is not a zigbee detector, that uses subG wireless, it will supported via cloud integration support.