Smoke detectors are the most important part of fire detection and fire alarm systems.

Depending on the alarm localization option, they are divided into addressable and conventional detectors.

Each addressable detector has its own address. In case of an event (alarm, fault, failure) the fire alarm central control panel may localize the detector where the change has occurred and display its address together with a description of its location on the LCD panel. The software assigns the detectors to detector groups (zones), up to 30 in one group. You can use lights or/and LCD panel to display the status of each group.

Apollo addressable detectors and other addressable elements, compatible with Zarja fire alarm central control panels, are divided in two families: XP-95 and Xplorer. Both include almost the same features, yet Xplorer detectors are slightly cheaper and have some limitations. In both systems, detectors transmit an analogue value of the measured physical phenomena (smoke concentration, temperature, switch position) to the fire alarm central control panel via a digital protocol, along with their decision of whether the signal is strong enough to trigger a pre-alarm or alarm. The central control panel may consider the detector’s choice or (when using Zarja central control panels) make its own choice based on its algorithms.

Detectors that are part of the XP-95 family are advanced detectors, which have been proven in the course of a long-term use around the world and also in large numbers in Slovenia. Each detector has its own optional address from 1 to 126, all communication protocol features are fully enabled. Addresses of detectors and other addressable elements (interfaces, addressable sirens…) can be assigned as desired. There are the following types of detectors available:


XP-95 optical smoke detector is the most widely used detector. It detects the presence of smoke based on light dispersion in its measuring chamber.




XP-95 temperature detector measures the ambient temperature and triggers an alarm when the temperature exceeds the value that is set with the central control panel (Zarja central control panels). It is primarily used in locations where the use of smoke detectors is not practical because of possible false alarms (due to the dust in the air, the possibility of condensation…).



XP-95 Multiple sensor detector has an integrated smoke measuring chamber and a temperature sensor. The processor inside the detector processes both signals with the use of a special algorithm which enables a higher level of detection reliability (in case of a small number of false alarms) and sensitivity equalization for all types of fires. It is used when most reliable detection is required and in locations where a standard smoke alarm may trigger false alarms.



XP-95 manual detector allows you to trigger an alarm when you detect a risk event yourself. An alarm triggered by the manual detector is always regarded as reliable and immediately initiates measures to prevent the spread of fire (turns on fire extinguishing system, closes fire doors…).





XP-95 standard base has an addressable tile, which defines the detector address based on the presence of the pins. When replacing the detector there is no need to set addresses because the new detector reads the position of pins.



XP-95 base with an integrated insulator is equivalent to a standard base, but includes an additional integrated insulator which disconnects the part of the loop in the event of a short circuit between the loop conductors. The maximum number of detectors installed between the two insulators is 30. Instead of a base insulator you can install an independent insulator with its own base.