La salida de emergencia tiene señalización.

Because salida is a feminine noun in Spanish, so it takes la.

• la salida = the exit
• una salida = an exit

This is because salida comes from the verb salir (to go out / to exit) and is formed as a noun meaning exit or way out. Like many nouns ending in -a, it is feminine.

De emergencia means for emergencies or simply emergency in English.

So:

• salida = exit
• salida de emergencia = emergency exit

This is a very common Spanish structure:

• de + noun

It often works like an English adjective-noun combination:

• puerta de entrada = entrance door
• gafas de sol = sunglasses
• cinturón de seguridad = seat belt

So de emergencia is describing the type of exit.

Tiene is the third person singular form of tener (to have).

Here, the subject is la salida de emergencia, which is singular, so Spanish uses:

• tiene = it has

Examples:

• La puerta tiene una alarma. = The door has an alarm.
• La sala tiene ventanas. = The room has windows.

So in your sentence, la salida de emergencia tiene señalización means that the emergency exit has signage / has signposting.

Spanish often leaves out the article when speaking in a general or non-specific way.

So:

• tiene señalización = it has signage / it is signposted
• tiene la señalización = it has the signage

The version without the article sounds more natural here because it means there is signage present, not a specific set of signs already known to the listener.

This is similar to how Spanish often omits articles with abstract or uncountable ideas.

Señalización means signage, signposting, or marking with signs.

It comes from señal:

• señal = sign / signal
• señalización = signage / signposting

In this sentence, it refers to signs indicating the emergency exit.

A learner should know that señalización is a bit more formal or technical than just saying señales.

Compare:

• Hay señales. = There are signs.
• Tiene señalización. = It has signage / it is properly signposted.

Yes, you could, but it is not exactly the same.

• tiene señales = it has signs
• tiene señalización = it has signage / signposting

Señalización sounds more formal, more official, and more natural in contexts like buildings, safety rules, regulations, and inspections.
Señales is more everyday and concrete.

So both are understandable, but señalización fits safety language especially well.

This follows the normal Spanish word order:

• subject + verb + object/complement

So:

• La salida de emergencia = subject
• tiene = verb
• señalización = object

This is very similar to English:

• The emergency exit has signage.

Spanish word order can be flexible, but this is the most neutral and standard order.

In your sentence, it is singular:

• la salida de emergencia = the emergency exit

If you wanted the plural, it would be:

• las salidas de emergencia = the emergency exits

Notice that only salida changes to plural here, while de emergencia stays the same:

• una salida de emergencia
• dos salidas de emergencia

Because in the structure noun + de + noun, the second noun often stays singular when it describes the type or purpose of the first noun.

So:

• salida de emergencia = emergency exit
• salidas de emergencia = emergency exits

This is similar to:

• centro de salud = health centre
• centros de salud = health centres

Spanish is treating de emergencia as a category or function, not as a countable item that needs to become plural.

Yes, absolutely. That is another very natural way to express the idea.

• La salida de emergencia tiene señalización.
• La salida de emergencia está señalizada.

The difference is slight:

• tiene señalización focuses on the presence of signage
• está señalizada focuses on the fact that it is marked/signposted

Both are correct.
In many real-life contexts, está señalizada may even sound a little more natural.

Spanish often uses de + noun where English uses a noun as an adjective.

English:

• emergency exit
• sun glasses
• car door

Spanish often prefers:

• salida de emergencia
• gafas de sol
• puerta del coche

So this is a very important pattern to get used to. English can place one noun directly before another, but Spanish usually links them with de.

It is pronounced approximately:

• seh-nyah-lee-tha-THYON in much of Spain
• or seh-nyah-lee-sa-SYON in Latin American pronunciation

In standard Peninsular Spanish, the z is pronounced like th in think.

The stress falls on the last syllable because of the written accent:

• se-ña-li-za-CIÓN

That accent mark tells you where to stress the word.

Yes, it is possible, especially in formal, technical, or safety-related contexts. However, in everyday signage you might more often see shorter phrases such as:

• Salida de emergencia
• Salida de emergencia señalizada
• La salida de emergencia está señalizada

Your sentence is grammatically correct and sounds like something from a safety checklist, inspection report, or building regulations rather than a simple sign on the wall.