Alecto SA20 3X

Delivered between 9.1.2026 and 15.1.2026
7 pieces in stock at supplier
Free shipping starting at 50.–

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Product details

Good fire protection doesn't have to be expensive. The Alecto SA20 3x proves that. For a small price, you get a piece of safety for your home that shouldn't be missing. Once installed, this set of three smoke detectors will alert everyone in the house with a loud sound when a fire situation occurs.

This budget-friendly smoke detector may be inexpensive, but it still has all the qualities you're looking for. It meets the EN 14604 standard, which was developed specifically for smoke detectors, and its optical measuring principle means it reacts immediately to a fire. This gives you and your loved ones as much time as possible to leave the building and notify the emergency services. It's easy to install, with all fixing materials and the battery included. A warning is given when the batteries need replacing, and it features a test button and a temporary off button.

There will be situations when you want to switch off the smoke detector, such as when cooking on a grill pan or during a party with smokers. The SA20 3x has a handy time-out button, allowing you to switch the detector off briefly if needed. This smoke detector comes complete with a long-life alkaline 9V battery. The base plate for attaching the smoke alarm to the wall or ceiling is also included, along with the necessary screws and plugs. Whether you want to attach it to a wooden ceiling or a stone wall, all materials are included with the product. With Alecto, you choose a well-thought-out and user-friendly product of high quality.

What's in the box?

  • Smoke detector x3
  • Alkaline battery 9V x3
  • Baseplate x3
  • Screws (6x) and plugs (6x)
  • Manual in multiple languages.

Key specifications

Power supply
Battery operated
Alarm signal
Acoustic warning
Hazard detector type
Smoke detectors
mounting style
Duvet
Items per sales unit
1x
Sound power level
85 dB
Item number
37400447

General information

Manufacturer
Alecto
Category
Hazard detectors
Manufacturer no.
SA20 3X
Release date
8.8.2023

Colour

Exact colour description
White
Colour
White

Material

Material group
Plastic
Material
Plastic

Hazard detector properties

Hazard detector type
Smoke detectors
Alarm signal
Acoustic warning
mounting style
Duvet
Application range
Indoor
Sound power level
85 dB
Additional properties
Plumb function

Power supply

Power supply
Battery operated
Number of batteries
1
Battery size
9V Block
Operating voltage
9 V

Smart home features

Smart Home
Not compatible
Requires Smart Home Hub
No

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Items per sales unit
1x
Scope of delivery
3-pack

Product dimensions

Length
10 cm
Width
10 cm
Height
3.70 cm
Weight
360 g

Package dimensions

Length
34.90 cm
Width
10.60 cm
Height
4.80 cm
Weight
438 g

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Hazard detectors» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Alecto
    Not enough data
  • 1.Busch-Jaeger
    0 %
  • 1.Elro
    0 %
  • 1.Emos
    0 %
  • 1.OPO
    0 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Alecto
    Not enough data
  • 1.Abus
    0 days
  • 1.Aqara
    0 days
  • 1.Brennenstuhl
    0 days
  • 1.Ei Electronics
    0 days

Return rate

How often is a product of this brand in the «Hazard detectors» category returned?

Source: Digitec Galaxus
  • Alecto
    Not enough data
  • 1.OPO
    0 %
  • 2.Cordes
    0.4 %
  • 3.Emos
    0.5 %
  • 4.Wiltec
    0.6 %
Source: Digitec Galaxus

Translation: machine translated
Very good93/100
Testmagazin Logo
Rank 8 out of 13TestmagazinDie Sicherheit im Fokus - unscheinbarer Schutz vor Feuer& Rauch - 13 Rauchmelder im TestReleaseMay 2023
  • PositiveVery fast & reliable response (To when emitting smoke from d: 3 metres: 38.4 & 77.9 seconds).
  • PositiveHigh sound pressure level of the normal alarm (LP max from d: 3 metres: 93.0 dB).
  • PositivePower source available ex works (1 x 6LR61, 9 V - replaceable)
  • Negativevery high sound pressure level of the test alarm (Lpi max from d: 1 metre: 104.3 dB)
  • NegativeSize of the button (Ømax d. button: 23 millimetres)

This smoke detector proved to be a reliable all-rounder that can stand out due to its respectable response behaviour: But then, when considerable wind should blow through the house, the model can only detect the billowing smoke after a while (Too. &m. Wind: 38.4 & 77.9 seconds).

This test report belongs to a different type: SA20 5X