Låssystemet har innbruddssikring.

Because Norwegian normally writes compound nouns as a single word.
Here, låssystemet is built from lås + system + the definite ending -et.

So instead of writing something like lock system as two words, Norwegian makes one compound noun: låssystem = lock system, and låssystemet = the lock system.

The ending -et is the definite article for a singular neuter noun.

So:

• et låssystem = a lock system
• låssystemet = the lock system

Unlike English, Norwegian usually puts the at the end of the noun instead of using a separate word.

You know it is neuter because its indefinite form takes et: et låssystem.

In Norwegian, noun gender affects the article and the definite ending:

• common gender: en bil → bilen
• neuter: et hus → huset

So et låssystem becomes låssystemet.

Har is the present tense of å ha, which means to have.

So grammatically, the sentence is simply:

• Låssystemet = the subject
• har = has
• innbruddssikring = burglary protection / break-in protection

Norwegian often uses ha in the same way English uses have for features or properties: something has protection, has a function, has heating, and so on.

Because innbruddssikring is being used as an uncountable or general feature noun here, similar to English has protection or has security.

So:

• har innbruddssikring = has burglary protection

This sounds natural because the speaker is talking about the presence of that feature in general, not one specific separate item.

If you said har en innbruddssikring, it would sound more like you were referring to a specific protection device or unit, which is not the most natural reading here.

It is another compound noun:

• innbrudd = break-in, burglary
• linking s
• sikring = securing, protection, safeguard

So innbruddssikring literally means something like break-in protection or burglary protection.

This kind of long compound is very common in Norwegian.

Because one s is a linking sound used in compounds, and the second s belongs to sikring itself.

So the word is built like this:

• innbrudd
• • linking s
• • sikring

That gives innbruddssikring.

This is normal in Norwegian compound formation. English speakers often find it strange at first, but it is very common.

No, it is a very basic Norwegian main clause with normal word order:

• Låssystemet = subject
• har = verb
• innbruddssikring = object/complement

So it follows the straightforward pattern subject + verb + object.

This is the same basic order as in English: The lock system has burglary protection.

Yes. A common alternative would be:

• Låssystemet er innbruddssikret.

That means The lock system is protected against break-ins or is burglar-proof / burglary-secured.

The original sentence with har innbruddssikring focuses on the system possessing that feature.
The alternative with er innbruddssikret describes the system more like an adjective or state.

Both are natural, but they are phrased a little differently.

Grammatically, yes, but in natural English you might translate the whole sentence more smoothly as:

• The lock system has burglary protection.
• The lock system is equipped with burglary protection.
• The lock system includes break-in protection.

So har still means has, but the best English translation may vary depending on style.

A rough pronunciation guide would be:

• Låssystemet ≈ LOHSS-sys-teh-met
• har ≈ har
• innbruddssikring ≈ INN-broodss-see-kring

A few useful notes:

• å is a long vowel, somewhat like the vowel in British law
• y in Norwegian has no exact English equivalent
• Norwegian compounds are usually spoken as one unit, even when they are long

So the whole sentence flows as one natural phrase: Låssystemet har innbruddssikring.

The indefinite forms are:

• et låssystem = a lock system
• innbruddssikring = burglary protection

Then the sentence uses the definite form only for the subject:

• låssystemet = the lock system

So a learner can think of it like this:

• dictionary form: et låssystem
• sentence form: låssystemet

That is a very common pattern in Norwegian.