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smoke detector smoke alarm
كاشف الدخان إنذار الدخان
detector de humo alarma de humo
دتکتور دود هشدار دود
détecteur de fumée alarme incendie
धुआं डिटेक्टर धुआं अलार्म
rilevatore di fumo allarme fumo
煙探知機 煙警報器
czujnik dymu alarm dymowy
detector de fumaça alarme de fumaça
detector de fum alarmă de fum
датчик дыма пожарная сигнализация
duman detektörü duman alarmı
детектор диму пожежна сигналізація
烟雾探测器 烟雾报警器

der  Rauchmelder
B1
Estimated CEFR level.
/ˈʁaʊxˌmɛldɐ/

🚨 What exactly is a Rauchmelder?

A Rauchmelder (smoke detector or smoke alarm) is a device designed to detect smoke in the air, typically produced during a fire. When smoke is detected, the device triggers a loud alarm sound to warn people in the building, giving them time to escape or fight the fire.

It's an important safety device that is legally required in homes and apartments in many countries. The article is always der Rauchmelder.

Article rules for der, die, and das

Devices mostly masculine.

Caution: das Gerät

Examples: der Akku · der Allradantrieb · der Anrufbeantworter · der Antrieb · der Apparat · der Automat · der ...
⚠️ Exceptions: das Fahrrad · das Flugzeug · das Funkgerät · das Gerät · das Getriebe · das Handy · das Instrument ·...

-er mostly masculine.

1. Caution: many exceptions. 2. almost all -euer nouns are neutral. 3. There are many -er words, we don't list them all.

Examples: der Alzheimer · der Ansprechpartner · der Arbeitgeber · der Arbeitnehmer · der Autofahrer · der Bech...
⚠️ Exceptions: das Barometer · das Münster · das Poker · das Polster · das Poster · das Raster · das Thermometer · das Zepter

🧐 Grammar: Der Rauchmelder in Detail

The noun "Rauchmelder" is masculine. Here is its declension:

Declension Singular
CaseArticleNoun
NominativederRauchmelder
GenitivedesRauchmelders
DativedemRauchmelder
AccusativedenRauchmelder
Declension Plural
CaseArticleNoun
NominativedieRauchmelder
GenitivederRauchmelder
DativedenRauchmeldern
AccusativedieRauchmelder

📝 Example Sentences

  1. Der Rauchmelder an der Decke piepte laut.
    (The smoke detector on the ceiling beeped loudly.)
  2. Die Batterien des Rauchmelders müssen jährlich gewechselt werden.
    (The smoke detector's batteries must be changed annually.)
  3. Wir haben in jedem Raum einen Rauchmelder installiert.
    (We have installed a smoke detector in every room.)
  4. Dank des Rauchmelders wurden wir rechtzeitig geweckt.
    (Thanks to the smoke detector, we were woken up in time.)

🏠 Everyday Usage

The term Rauchmelder is primarily used in the context of Brandschutz (fire safety) and Haussicherheit (home security).

  • Legal Requirement: In Germany and many other countries, there is a Rauchmelderpflicht (mandatory smoke detector installation) for residential buildings. This means owners or landlords are obliged to install smoke detectors.
  • Functionality: People talk about the installation, maintenance (battery replacement, test button), and function of Rauchmelder.
  • Differentiation: A simple Rauchmelder (often called Rauchwarnmelder) is intended for private use. More complex systems in public buildings or companies are often called Brandmeldeanlage (fire alarm system), which connect various Brandmelder (fire detectors, which can also detect heat or gases) to a central control panel.

⚠️ Important: A Kohlenmonoxidmelder (CO detector) is not a Rauchmelder and detects different hazards!

🧠 Mnemonics to Remember

Article Mnemonic: Think of a male guard: der Wächter. A Rauchmelder is like a guard watching over your house and sounding the alarm. Der Wächter, der Rauchmelder.

Meaning Mnemonic: The word is composed of "Rauch" (smoke) and "Melder" (detector/reporter). It's simply a device that meldet (reports) Rauch (smoke).

↔️ Synonyms and Antonyms

Synonyms

  • Rauchwarnmelder: Very often used synonymously, emphasizing the warning function. Technically often the more precise term for home devices.
  • Brandmelder: Can be synonymous, but is often an umbrella term that also includes detectors responding to heat or flames. Used in professional fire alarm systems (Brandmeldeanlagen).
  • Feuermelder: More colloquial or dated for Rauchmelder, but can also refer to the public red boxes for manually triggering an alarm.

Antonyms

Direct antonyms are rare. Conceptually, one might consider:

  • Entwarnungssignal: (All-clear signal) Signals the end of danger, whereas the smoke detector warns of it.
  • Stille / Sicherheit: (Silence / Safety) The state indicated by the smoke detector's silence.

Similar but Different Terms

  • Kohlenmonoxidmelder (CO-Melder): Warns of odorless carbon monoxide, not smoke.
  • Hitzemelder: Reacts to high temperatures, not smoke particles.
  • Gasmelder: Warns of leaking gas (e.g., natural gas).

😂 A Little Joke

Warum hat der Rauchmelder eine Beförderung bekommen?
(Why did the smoke detector get a promotion?)

Weil er immer Alarm geschlagen hat, wenn es brenzlig wurde!
(Because he always raised the alarm when things got 'hairy'/'dicey' (lit. 'burny')!)

✒️ Poem about the Rauchmelder

Still an der Decke, klein und weiß,
(Silent on the ceiling, small and white,)
wacht er über uns, ganz leis.
(It watches over us, very quiet.)
Doch zieht Gefahr durchs Zimmer ein,
(But if danger enters the room,)
in Form von Rauch, so trüb und fein,
(In the form of smoke, so murky and fine,)
dann schreit der Rauchmelder: "Wacht auf, geschwind!"
(Then the smoke detector shouts: "Wake up, quickly!")
Ein kleiner Held, der Leben find't.
(A little hero that finds life / saves lives.)

❓ Little Riddle

Ich habe keinen Mund, doch schreie laut,
(I have no mouth, yet I scream loudly,)
wenn Gefahr durch Rauch sich aufgebaut.
(When danger from smoke has built up.)
Ich hänge still und warte ab,
(I hang silently and wait,)
rette Leben, mach nicht schlapp.
(Save lives, don't give up.)

Wer bin ich? / Who am I?

Answer

Der Rauchmelder / The smoke detector

💡 Other Information

Word Composition

The word "Rauchmelder" is a compound noun, composed of:

  • Der Rauch: Smoke
  • Der Melder: Detector, reporter, signaler (from the verb melden - to report/signal)

Trivia

  • Mandatory Installation (Rauchmelderpflicht): In all German federal states, smoke detectors are mandatory for new and renovated buildings, as well as existing homes, especially in bedrooms, children's rooms, and hallways serving as escape routes.
  • Working Principle: Most smoke detectors for home use operate on the optical (photoelectric) principle. Smoke particles enter a measuring chamber and scatter a light beam onto a photocell, triggering the alarm.
  • Maintenance: Regular testing (usually via a button) and battery replacement (unless long-life batteries are installed) are crucial for operational reliability.

📝 Summary: is it der, die or das Rauchmelder?

The word "Rauchmelder" is always masculine. The correct article is der: der Rauchmelder (singular), die Rauchmelder (plural).

🤖

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