Loud outside, visible from the street, and awkward to reach · review
Twenty watts and a bracket for twelve dollars, on the one listing here whose wattage nothing on the page contradicts.
The conclusion Twenty watts, 118 decibels and a bracket for twelve dollars, and the only wattage on this shelf that nothing on its own page contradicts — which on a shelf where two rivals publish impossible power figures is worth something. It publishes no current, so the 20 W cannot be checked, no material and no IP rating despite being sold as weather-resistant, and like every siren here it has no tamper switch, battery or strobe. One of its five bullets is a duplicate.
No current. No material. No IP rating. No tamper switch. No backup battery. No strobe.
Which on this shelf is a distinction.
Two listings here publish a current that contradicts their own stated wattage — one by a factor of four, one by eight.
HQRP publishes no current at all. So the 20 W is uncontested, and unverifiable.
If the panel’s siren output is marginal, the siren that publishes 320 mA is the one you can plan around.
Cars, trucks, go-karts, golf carts, RVs, boats.
The widest application list on this shelf, and electrically it is honest: a 12 V DC horn does not care what the twelve volts came from.
Environmentally the page does not support it. No IP rating, no material, no sealing — only the phrase built to withstand the elements.
On a boat that is not enough. And none of the four sirens here publishes an ingress rating, so any of them under an open sky is a gamble.
Not stated.
This shelf’s introduction: the stated sound level is quoted at one meter and falls quickly with distance.
Quoted at no voltage either, where one siren on this shelf ties its figure to twelve volts and says plainly that less voltage means fewer decibels.
Word for word.
“Electronic Alarm Siren is designed for easy installation, allowing you to enhance your home security quickly and efficiently.”
Twice. One fifth of the specification.
On sale at around $12 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 October 8, 2026. The live price is at the top of the page.
| Sound level | 118 dB, stated. No measuring distance appears, and this shelf's introduction says the stated level is quoted at one meter and falls quickly with distance. It is also quoted without a voltage, where one siren on this shelf ties its figure to 12 V and warns that a lower supply gives fewer decibels |
|---|---|
| Power | 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 |
| Voltage | DC 12 V, stated, and compatible with any 12 volt system — cars, trucks, go-karts, golf carts, RVs and boats are named alongside home alarm panels. It is the widest stated application range on this shelf |
| Tones | One tone, stated. The two-tone siren and the two-sound siren on this shelf offer a choice |
| Supplied | The siren and a bracket, stated. Two of the four sirens here include a bracket and two do not mention one |
| Construction | Stated built to withstand the elements, robust and reliable, with no material named — where two sirens on this shelf name ABS flame-retardant plastic. No IP rating appears |
| Tamper | None. This shelf's introduction calls tamper protection what stops a siren being silenced first, and no siren on this shelf has it |
| Backup battery | None. No strobe either, and nothing to pair: this is a wired horn for an existing system |
| Copy | The fourth and fifth bullets end with the same sentence word for word: "Easy Installation: Electronic Alarm Siren is designed for easy installation, allowing you to enhance your home security quickly and efficiently." One of five bullets is a duplicate |
| Amazon reference | B0DBFM7C2L |
| EAN | 0887774594924 |
On paper, and the comparison is less clean than it looks. More electrical power into the same kind of driver does give more sound, which is why HQRP claims 118 dB where a 15 W horn on this shelf claims 110. But two listings here publish a current that contradicts their own wattage — one by a factor of four, one by eight — so the wattages on this shelf are not reliably comparable. HQRP publishes no current at all, which means its 20 W is uncontested and also unverifiable. If the panel's siren output is marginal, the siren that publishes 320 mA is the one you can plan around.
Electrically, yes — it is a 12 V DC horn and HQRP names cars, trucks, go-karts, golf carts, RVs and boats, which is the widest application list on this shelf. Environmentally, the page does not support it: there is no IP rating, no material named and no sealing described, only the phrase built to withstand the elements. On a boat that is not enough. Two sirens on this shelf name ABS flame-retardant housings; none of the four publishes an ingress rating, so any of them under an open sky is a gamble.
Everything except the volume, and that is true of all four sirens left on this shelf. This shelf's introduction compares stated decibels, tamper switches, backup battery, strobe visibility and pairing range — and after step 0 this shelf holds four bare 12 V horns, none of which has a cover switch, a battery or a strobe. That is not a fault of the product: it is a replacement horn, priced as one. It does mean that an outdoor siren that keeps sounding when its cable is cut is not on this shelf.
Between security devices of the same category and nearby price. Shown: what they all state. A half-filled column says nothing.
| Model | Price | Sound level | Power | Tamper | Backup battery |
|---|---|---|---|---|---|
| HQRP Electronic alarm siren, 20 W DC 12 V, 118 dB, with bracket | $12 | 118 dB, stated. No measuring distance appears, and this shelf's introduction says the stated level is quoted at one meter and falls quickly with distance. It is also quoted without a voltage, where one siren on this shelf ties its figure to 12 V and warns that a lower supply gives fewer decibels | 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 | None. This shelf's introduction calls tamper protection what stops a siren being silenced first, and no siren on this shelf has it | None. No strobe either, and nothing to pair: this is a wired horn for an existing system |
| Tokatuker BT626 wired alarm siren horn, 15 W, DC 6–13 V | $12 | 120 dB at 12 V DC — stated, with the qualification "low voltage would be low Db". It is the ONLY listing on this shelf to tie its decibel figure to a supply voltage and to say that the figure falls when the voltage does, which matters because all four sirens here accept 6 V upwards. No measuring distance is given, and this shelf's introduction says the stated level is quoted at one meter and falls quickly with distance | 15 W rated, stated — against the 3.84 W its own current and voltage figures give. Both numbers are on the same page | NONE. This shelf's introduction calls tamper protection — a switch that fires the alarm when the cover is opened or the unit is prised off the wall — what stops a siren being silenced first. No siren on this shelf has one | None, and no strobe. All four sirens on this shelf are bare horns fed from the panel |
| QWORK WD8893 electric siren horn, 12 V, 110 dB, 2-pack | $15 | 110 dB, dual tone — stated. It is the lowest figure on this shelf and the only dual-tone horn here: two alternating tones carry further through a house than one steady note, because a changing pitch is harder to ignore and harder to mistake for a vehicle | 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 | None. This shelf's introduction calls tamper protection what stops a siren being silenced first; no siren on this shelf has one | None, and no strobe. Nothing to pair: these are wired horns for an existing panel |
| FTGear W3Y-DYV-WWO634 outdoor siren speaker, 12 V, two selectable sounds | $26 | 150 dB claimed. Read it against the rest of this shelf: a 20 W horn here claims 118 dB and a 15 W horn claims 120 dB, and thirty decibels is one THOUSAND times the acoustic power. FTGear's own data sheet gives 300 mA at 12 V, which is 3.6 W — less electrical power than either of them. The figure cannot be right, and no measuring distance is given | 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 | None. This shelf's introduction calls tamper protection what stops a siren being silenced first, and no siren on this shelf has one | None, and no strobe — despite being the only one of the four sold explicitly as an outdoor siren |
Details checked on October 8, 2026.
A universal 12 V replacement — a house panel, a boat, an RV or a vehicle alarm
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.
100 dB from two piezo speakers · solar with replaceable NiMH pack · outdoor · needs an Access Point
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.
Best for: A Homematic IP installation where running a cable to the siren is not practical.
≈ $185
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.
