
A Wi-Fi to infrared bridge. It controls the air conditioner you already own, with its own remote codes.
The Zigbee version of the retrofit radiator head - one coordinator covers every radiator in the building.
Made by Lang Er (supplier brand) · MPN JXS09
Minimum order: 2 units
Volume pricing
Add 8 more — $39.99 each
A Zigbee thermostatic head for an existing radiator valve. The mechanical story is the same as its Wi-Fi sibling: remove the manual wheel, fit this, and the radiator follows a schedule instead of a knob.
The difference is the network. Zigbee means one coordinator can serve every radiator in a building, which is what you want in a twenty-unit property and what you do not want in a single flat where nothing else speaks Zigbee. Decide that before you order, because there is no Wi-Fi radio in this one.
The supplier lists the model as JXS09, packed weight 460 g, packed size 12 x 11 x 8 cm. It does not publish battery count, battery life, thread sizes or a certification for this listing. The 400+ reviews on this SKU make it one of the better-evidenced items in this batch; the specification table is still thin.
Each line below is one combination: this device, that hub, that firmware — with the date it was checked on the right. For ecosystems not listed here, we make no claim.
Editor’s note: This is the Zigbee variant, and the page says so in the first line rather than burying it - buying the wrong radio is the single most common mistake in this category. Thread sizes and battery life are not in the supplier's table and are not guessed. No certification is listed for this SKU.





A Wi-Fi to infrared bridge. It controls the air conditioner you already own, with its own remote codes.

A battery thermostatic head that replaces the manual valve wheel. No plumbing, no wiring, no electrician.
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