Varslingsanlægget sender advarselssignalet.

Because Danish, like German, very often builds compound nouns.

This sentence has two compounds:

• Varslingsanlægget = varslings
  • anlægget
• advarselssignalet = advarsels
  • signalet

A rough breakdown is:

• varsling = warning / alerting
• anlæg = system, installation, facility
• advarsel = warning
• signal = signal

So:

• varslingsanlægget = the warning system
• advarselssignalet = the warning signal

This is very normal in Danish. Instead of using several separate words, Danish often packs the idea into one noun.

The ending -et is the definite article for many neuter nouns in Danish.

So instead of putting a separate word for the before the noun, Danish often adds it to the end:

• et anlæg = a system

• anlægget = the system

• et signal = a signal
• signalet = the signal

In your sentence:

• varslingsanlægget = the warning system
• advarselssignalet = the warning signal

So yes, both words are definite: the ... system and the ... signal.

Because Danish usually puts the definite article at the end of the noun.

Compare:

• English: the signal

• Danish: signalet

• English: the system
• Danish: anlægget

This is one of the biggest differences from English.

A quick comparison:

• et signal = a signal

• signalet = the signal

• et anlæg = a system / facility
• anlægget = the system / facility

So the sentence does not need a separate word like English the, because it is already built into the noun endings.

That -s- is a very common linking element in Danish compounds.

You can think of it as a sound or connector that helps join the parts of the compound more naturally.

For example:

• varsling
  • anlæg → varslingsanlæg
• advarsel
  • signal → advarselssignal

This -s- does not usually have a separate meaning by itself in modern Danish here. It is just part of how many compounds are formed.

English learners often try to analyze it as a possessive 's, but that is usually not the best way to think about it. In these words, it is mainly a compound linker.

Because sender is the present tense form of the verb sende.

• at sende = to send
• sender = sends / is sending

So:

• Varslingsanlægget sender advarselssignalet. = The warning system sends the warning signal.

This is very common in Danish:

• infinitive often ends in -e
• present tense often ends in -r

Examples:

• at komme → kommer
• at høre → hører
• at sende → sender

Not especially. This is a straightforward subject–verb–object sentence:

• Varslingsanlægget = subject
• sender = verb
• advarselssignalet = object

So the structure is:

Subject + Verb + Object

That is very similar to English:

• The warning system
  • sends
    • the warning signal

Danish often follows this order in simple main clauses. Danish does have the verb-second rule, but in a sentence like this, that still gives the same basic order because the subject comes first.

They are related, but not exactly identical.

• varsling is more like warning/alerting as a process or system
• advarsel is more like a warning as a message or specific warning

So in this sentence:

• varslingsanlægget is the system that carries out the warning/alerting
• advarselssignalet is the actual warning signal being sent

You do not need to force a sharp English distinction every time, but that is the general idea.

Unfortunately, in Danish you often just have to learn the gender with the noun.

You learn:

• et anlæg
• et signal

Because they are neuter, the definite singular form becomes:

• anlægget
• signalet

A good habit is to memorize nouns with their article:

• et signal
• et anlæg
• en advarsel
• en varsling or just learn the compound as a whole when relevant

If you only memorize the bare noun, it is harder to form correct Danish later.

A rough learner-friendly guide might be:

• Varslingsanlægget ≈ VAHR-slings-an-leg-ed
• sender ≈ SEN-ner
• advarselssignalet ≈ AD-var-sels-sig-na-led

A few important points:

• Danish pronunciation is often much less phonetic than spelling suggests.
• Final -et is often pronounced more like -ed.
• g can be soft or weak in some positions.
• Unstressed syllables are often reduced.

If you want to sound natural, it is best to listen to native audio, because Danish pronunciation can be tricky even when the grammar is simple.

No. anlægget is singular definite: the system.

Here is the pattern:

• et anlæg = a system
• anlægget = the system
• anlæg = systems or sometimes the same form as singular in indefinite plural, depending on context
• anlæggene = the systems

Likewise:

• et signal
• signalet
• signaler
• signalerne

So in your sentence, both main nouns are singular:

• the warning system
• the warning signal

Almost, but not perfectly.

A very close translation is:

• Varslingsanlægget = the warning system
• sender = sends
• advarselssignalet = the warning signal

So a near word-for-word translation is:

The warning system sends the warning signal.

The main thing that does not map word-for-word is the definite article, because Danish puts the at the end of the noun instead of using a separate word.

Yes, it sounds somewhat official, technical, or informational.

Words like:

• varslingsanlæg
• advarselssignal

are not the most casual everyday vocabulary for a beginner. They sound like the kind of language you might see in:

• public safety instructions
• emergency information
• official notices
• technical descriptions

That does not make the grammar unusual, though. The grammar is quite standard; it is mainly the vocabulary that feels formal or specialized.