Loud outside, visible from the street, and awkward to reach · review
A solar-powered outdoor siren with two piezo speakers at 100 dB and an optical signal, running on a replaceable NiMH pack charged by its own cell. It requires a Homematic IP Access Point and the app.
The conclusion The cable-free siren, with a battery you can replace rather than a product you replace. Homematic IP systems only.
An outdoor siren belongs high on a gable, which is the hardest place in a house to run a cable to. This one does not need one.
A solar cell charging a replaceable NiMH pack. Both halves matter. The solar removes the cable; the replaceable pack means that when the cell degrades — and every rechargeable cell does — the siren is repaired rather than replaced. On a device bolted twenty feet up, that difference is a ladder and a hundred dollars.
Sealed batteries in outdoor devices are a design decision that turns a ten-year product into a five-year one, and this avoids it.
A small solar cell in December, at a northern latitude, produces a fraction of its summer output — and December is when nights are longest. The pack carries it; the cell tops it up. Mount the panel as steeply and as clear of shade as the position allows.
100 dB, lower than the cheaper sirens here. All these figures are quoted at one meter. Piezo speakers are sharp and carry well, and height and visibility decide effectiveness more than the number does — but if raw volume is the priority, the HUXGO sirens state more.
A Homematic IP Access Point and the cloud service. That is a company having to keep a service running, and Homematic IP has been doing so for a long time.
A Homematic IP household with a gable and no cable.
On sale at $185 on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on September 2, 2026. The live price is at the top of the page.
| Sound | 100 dB from two piezo speakers |
|---|---|
| Signal | Acoustic and optical |
| Power | Solar cell with replaceable NiMH pack, optional micro-USB charging |
| Requires | Homematic IP Access Point 2 or a CCU, plus the app and cloud service |
| Placement | Outdoor |
| Security | Tamper contact against tampering or removal |
| Amazon reference | B07GZX8P7S |
| EAN | 4047976532087 |
Considerably. Every rechargeable cell degrades, and a sealed one turns the whole siren into a disposable object after five or six years. A replaceable NiMH pack means the siren outlives its battery, which for a device bolted high on a gable end is the difference between a repair and a ladder plus a new product.
It is lower than the 115 and 120 dB figures elsewhere in this hub, all of which are quoted at one meter. Placement matters more: a 100 dB siren high on a visible gable is heard further and reached less easily than a louder one mounted low. Piezo speakers are also sharper and more penetrating than their figure suggests.
That the system needs an Access Point and Homematic IP's service to operate as designed. That is a dependency on a company continuing to run a service, and it is the standard trade for this class of system. Homematic IP is a long-established German platform, which makes it a better bet than most.
8.7/ 10
The cable-free siren, with a battery you can replace rather than a product you replace. Homematic IP systems only.
Between security devices of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.
| Model | Price | Power |
|---|---|---|
| Homematic IP HmIP-ASIR-O | $185 | Solar cell with replaceable NiMH pack, optional micro-USB charging |
| FTGear W3Y-DYV-WWO634 outdoor siren speaker, 12 V, two selectable sounds | $26 | The page gives "Rated Power: DC12V", "Rated Current: 300mA" and "Rated Power: 30W" in three consecutive lines. Twelve volts at 300 mA is 3.6 W. Thirty watts at 12 V would draw 2.5 amps, eight times the stated current. The two figures cannot both be true |
| QWORK WD8893 electric siren horn, 12 V, 110 dB, 2-pack | $15 | 15 W rated at DC 6 to 12 V, stated, with low power consumption claimed. No current figure is given, so the 15 W cannot be checked against it — two sirens on this shelf publish a current that contradicts their own wattage |
| HQRP Electronic alarm siren, 20 W DC 12 V, 118 dB, with bracket | $12 | 20 W at DC 12 V, stated — the highest wattage on this shelf, and the only one no other figure on its own page contradicts. Two sirens here publish a current that disagrees with their stated watts; HQRP publishes no current, so the 20 W stands uncontested and unverified |
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on September 2, 2026.
A Homematic IP installation where running a cable to the siren is not practical.
Specifications: the manufacturer sheet for home security products and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
85–110 dB · 868 MHz AirShield, to 1,200 m (4 ft) open field · warning light · burglary, fire and panic tones
The outdoor siren for Goliath's AirShield system: 85 to 110 dB with a warning light, three distinct alarm tones, and 868 MHz radio quoted at up to 1,200 m (4 ft) in open field.
Best for: A Goliath system on a property large enough that the hub and the siren are far apart.
120 dB adjustable · strobe · 5000 mAh backup · 433 MHz to 10 hosts, 80 m (262 ft) · tamper protection
HUXGO's larger outdoor siren: 120 dB with adjustable volume and a strobe, a 5000 mAh backup battery, tamper protection, and pairing with up to ten HUXGO hubs.
Best for: A HUXGO system where the siren must survive a long power cut, or where several hubs share one siren.
115 dB · strobe · 433 MHz to 80 m (262 ft) or wired NC/NO · 1000 mAh backup · tamper protection
A siren for indoors and sheltered outdoors, with a strobe, connectable either wirelessly at 433 MHz to HUXGO panels or by wire on a normally-closed contact, with a 1000 mAh backup cell and tamper protection.
Best for: A system that needs both a wireless and a wired option — including older panels with a spare NC output.
