القفل الرقمي مع المؤقت.

Not necessarily. It is most naturally a noun phrase or product label, the kind of wording you might see in a catalog, menu, interface, or advertisement.

Arabic often uses short verbless phrases in places where English also uses labels rather than full sentences.

Because that is the normal order in Arabic for descriptive adjectives.

The pattern is:

• noun + adjective
• القفل الرقمي

So unlike English digital lock, Arabic says something closer to the lock digital.

Because Arabic adjectives must agree with the noun they describe in definiteness as well as gender and number.

So:

• القفل الرقمي = the digital lock
• قفل رقمي = a digital lock

If the noun is definite, the adjective must also be definite.

رقمي is a nisba adjective. The ending -يّ often turns a noun into an adjective meaning related to or connected with that noun.

Here:

• رقم = number / digit
• رقمي = numeric / digital

So this is a very common Arabic way to form adjectives.

Because قفل is a masculine singular noun, so the adjective must match it.

That is why you get:

• قفل رقمي for a masculine singular noun

If the noun were feminine, the adjective would usually be feminine too, for example:

• ساعة رقمية

So this is basic adjective agreement.

مع means with.

For learners, the most useful thing to know is that the word after مع is treated as genitive. So in a fully vocalized version, the last word would take a genitive ending.

This is why you would expect:

• ... مع المؤقتِ

Because the phrase is referring to the timer as part of the described item.

So the structure is:

• the digital lock
• with the timer

If you wanted an indefinite version, you could say:

• قفل رقمي مع مؤقت

That would correspond more closely to a digital lock with a timer.

In actual pronunciation, it is pronounced ar-raqamī, not al-raqamī.

That is because ر is a sun letter, so the l of الـ assimilates to it.

So:

• القفل = al-qufl because ق is a moon letter
• الرقمي = ar-raqamī because ر is a sun letter

The spelling does not change, only the pronunciation.

Yes. Without short vowels, مؤقت can be ambiguous.

With vowels:

• مُؤَقِّت = timer
• مُؤَقَّت = temporary

In normal Arabic writing, those vowels are usually omitted, so context tells you which meaning is intended. In this phrase, the product context makes timer the natural reading.

As a stand-alone label, a common fully vocalized form would be:

القفلُ الرقميُّ مع المؤقِّتِ

This shows:

• القفلُ: nominative
• الرقميُّ: adjective matching القفل
• المؤقِّتِ: genitive after مع

In everyday Arabic writing, these short vowels are usually left out.