Loud outside, visible from the street, and awkward to reach

The best security sirens for 2026

A siren is the part of an alarm that acts on the outside world, and it does two jobs at once: it makes the house unpleasant to remain inside, and it tells the street which house is calling. Both are worth reading separately. The stated sound level is quoted at one meter and falls quickly with distance, so an outdoor siren under an eave carries where an indoor one does not. Tamper protection — a switch that fires the alarm when the cover is opened or the unit is prised off the wall — is what stops it being silenced first. We compare stated decibels, tamper switches, backup battery, strobe visibility and pairing range.

By Jean-Benoit Buisson

The models we recommend

1. 

   HQRP Electronic alarm siren, 20 W DC 12 V, 118 dB, with bracket

   118 dB, 20 W at DC 12 V — the highest unambiguous wattage on this shelf · one tone · bracket included · stated compatible with any 12 V system: cars, trucks, go-karts, golf carts, RVs and boats · no tamper switch, no backup battery, no strobe · bullets 4 and 5 are the same sentence

   Twenty watts and a bracket for twelve dollars, on the one listing here whose wattage nothing on the page contradicts.

   Best for: A universal 12 V replacement — a house panel, a boat, an RV or a vehicle alarm

   ≈ $12

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2. 

   PNI SafeHouse HS007LR

   Outdoor wireless siren · battery and mains · continues on power failure · over 110 dB and strobe

   An outdoor wireless siren for PNI SafeHouse alarm panels, with both mains and battery power. PNI states it keeps running through a deliberate or accidental power cut.

   Best for: Adding an outdoor siren to a PNI SafeHouse system, cheaply.

   6.9/10

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3. 

   HUXGO HXA-SB120

   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.

   8.1/10

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4. 

   FTGear W3Y-DYV-WWO634 outdoor siren speaker, 12 V, two selectable sounds

   Claims 150 dB — thirty decibels above the 120 dB horn on this shelf, from the same actual electrical power · "Rated Power: 30W" alongside "Rated Current: 300mA" at 12 V, which is 3.6 W · TWO SELECTABLE SOUNDS chosen by which wire pair you connect · an adjustable angle by loosening a nut · 100% pure nickel alloy coil wire · its own data sheet gives 19.5 × 11.9 × 22.5 mm (0.77 × 0.47 × 0.89 in) for a 1.98 lb object

   The only siren here you can aim and the only one with two sounds — and the only one whose own numbers rule out its headline claim.

   Best for: An outdoor horn that has to be aimed down a drive, bought on its features rather than its decibel claim

   ≈ $26

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5. 

   QWORK WD8893 electric siren horn, 12 V, 110 dB, 2-pack

   TWO sirens for fifteen dollars — about seven fifty each, the only multipack on this shelf · 110 dB, DUAL TONE · 15 W, DC 6 to 12 V · ABS flame-retardant shell, low power consumption · no current, no dimensions, no bracket mentioned · no tamper switch, no backup battery, no strobe

   Two horns for the price of one, and the only dual-tone siren on this shelf.

   Best for: Two sirens on one panel — one indoors to clear the house, one outdoors to tell the street

   ≈ $15

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6. 

   Tokatuker BT626 wired alarm siren horn, 15 W, DC 6–13 V

   120 dB AT 12 V DC, and the only listing here that says the level falls at lower voltage · 320 mA at 12 V — which works out at 3.84 W against the 15 W claimed · 106 × 102 mm (4.17 × 4.02 in), the only dimensions on this shelf · ABS flame-retardant shell on an iron bracket · one tone · no tamper switch, no backup battery, no strobe

   The only siren here that ties its decibel figure to a voltage and admits the figure drops — and the only one you can measure its own claims against.

   Best for: A wired 12 V panel where the installer wants a current figure before sizing the supply

   ≈ $12

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7. 

   HUXGO HXA-SB300

   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.

   8.1/10

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8. 

   Goliath Basic Outdoor Siren

   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.

   7.5/10

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9. 

   Homematic IP HmIP-ASIR-O

   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.

   8.7/10

   ≈ $185

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