Detectors
Stratos: aspirating smoke detectors and detector modules
Which Stratos aspirating smoke detectors and ModuLaser detector modules exist, what is replaced during the scheduled replacement and how they are connected to the fire alarm control panel – with the order numbers from NSC.
Detector age
How old is the detector – how long has it been in operation?
- Stratos: Type plate on the unit with type and date of manufacture. Device data and the event log can be read out using the Stratos configuration software.
- Logbook and reports (decisive): The operating time counts from the commissioning of the detector. The date is recorded in the logbook, in the commissioning or acceptance report or in the last replacement report. This gives the years and months in operation.
- Type plate on the detector: The label (usually on the underside or side of the detector, visible after twisting it out of the base) shows the type, serial number and date of manufacture or a date code (e.g. year/calendar week). If no commissioning date is documented, we take the cautious approach of calculating from the date of manufacture.
- Reading out via the panel: With many addressable loop detectors, detector data such as serial number, date of manufacture, degree of contamination and – depending on the system and software version – operating hours can be retrieved via the panel’s operating unit or programming software. We do this during the survey using your programming file.
This determines the replacement interval under DIN 14675: as a rule 5 years, or 8 years for detectors with contamination compensation and testing in accordance with the manufacturer’s specifications – details under Deadlines & standards. Send us a photo of the type plate and we will determine the age for you.
Stratos (Kidde AirSense)
Which Stratos unit do you have installed?
Stratos aspirating smoke detectors with laser detector chambers are distributed in Germany by NSC Sicherheitstechnik. There are compact standalone units (HSSD 2, Micra 10/25/100) and the modular system ModuLaser made up of detector modules and display/control modules. They are connected via relays or via APIC interface cards to Hochiki and Apollo loops.
Images: NSC Sicherheitstechnik, Stratos brochure (as of 05/2025). Examples shown.
Current units
Stratos detectors and ModuLaser modules (EN 54-20)
These Stratos units are available (NSC Stratos brochure, as of 05/2025). All are approved to EN 54-20. During the scheduled replacement under DIN 14675, the detection element (laser detector chamber or detector module) is replaced in accordance with the manufacturer’s specifications; filters are changed regularly.
| Image | Unit | Item no. | Approval | Replaced part | Note |
|---|---|---|---|---|---|
| HSSD 2 with display (4 alarm relays, RS485 bus) | B05050-00 | VdS G 203024, EN 54-20 2831-CPR-F1185 | Detector chamber / filter B05110-01 | up to 126 detectors can be networked via Command module |
| HSSD 2 without LCD (LED display) | B05065-00 | VdS G 203024, EN 54-20 2831-CPR-F1187 | Detector chamber / filter B05110-01 | – |
| Micra 10 (1 pipe up to 50 m, cannot be networked) | B05025-00 | EN 54-20 0370-CPR-2301 | Detector chamber / filter B05110-02 | 2 alarm relays |
| Micra 25 (1 pipe up to 50 m, RS485 bus) | B05070-00 | VdS G 207078, EN 54-20 2831-CPR-F1183 | Detector chamber / filter B05110-02 | – |
| Micra 100 (2 pipes, up to 100 m in total, RS485 bus) | B05080-00 | VdS G 209217, EN 54-20 2831-CPR-F1184 | Detector chamber / filter B05110-02 | – |
| ModuLaser detector module (up to 250 m of pipe, 110 sampling holes) | B05035-00 | VdS G 219077, EN 54-20 2831-CPR-F2416 | same detector module / filter B05110-01 | – |
| ModuLaser Minimum Module (manages up to 4 detector modules) | B05036-00 | VdS G 219077, EN 54-20 2831-CPR-F2416 | – | Control module |
| ModuLaser Display Module (manages up to 4 detector modules) | B05037-00 | VdS G 219077, EN 54-20 2831-CPR-F2416 | – | Control module |
| ModuLaser Command Display Module (networking, ModBus/BACnet, APIC) | B05038-00 | – | – | Control module |
Item numbers and approvals according to the NSC Stratos brochure (as of 05/2025).
Connection
Interfaces to the fire alarm control panel
| Image | Component | Item no. | Suitable for | Note |
|---|---|---|---|---|
| – | APIC interface card Hochiki | B05101-00 | HSSD 2, ModuLaser | Connection to Hochiki loop (e.g. NSC Solution F1) |
| – | APIC interface card Apollo | B05101-01 | HSSD 2, ModuLaser | Connection to Apollo loop |
| – | Relay card | B05104-00 | Stratos detectors | Additional relays |
| – | Remote display unit RDU | B05100-00 | all Stratos detectors | – |
| – | Input/output module Hochiki CHQ-PCM(SCI) | B02444-00 | Relay connection to Hochiki loop | – |
| – | Input/output module Apollo SA4700-104APO | B02942-00 | Relay connection to Apollo loop | – |
You will find Hochiki and Apollo detectors for NSC systems on the NSC page.
Older units
Older Stratos generations
Older Stratos units – such as first-generation Stratos HSSD or Stratos Quadra – are no longer included in the current NSC brochure. We clarify with NSC or Kidde whether replacement detector chambers are available or whether a switch to HSSD 2, Micra or ModuLaser is required. A change of unit requires a recalculation of the pipe network in accordance with EN 54-20.
Important
Before ordering
- Check the panel: Stratos units are connected to the panel via relays or APIC cards. When the unit is changed, the control must be checked. We check this using your detector list and programming file.
- Replacement interval: Smoke and multi-sensor detectors after 5 years at the latest, or after 8 years with automatic contamination compensation and testing in accordance with the manufacturer’s specifications – details under Deadlines & standards.
- Change of detector series: New bases, different detector types or a changed number of detectors may constitute a significant modification – see expert inspection and fire brigade.
- EN 54 tested (as of 19.10.2026): All Stratos units listed as available are certified to EN 54-20 (CPR numbers in the table). Detectors that are no longer available were approved under the EN 54 or VdS rules in force at the time of their introduction; since 2008, CE marking to EN 54 has been mandatory for new detectors – which is why we only name currently certified types as replacements.
- Installation by a specialist company only: Replacement and repair of detectors in fire alarm systems required under building law are part of maintenance and are reserved for a specialist company certified to DIN 14675 – even if you only buy the detectors from us. Details under Legal situation.
- Order numbers from NSC (Stratos) are listed in the tables (brochure as of 05/2025).
- Image credits and trademarks: Product images © Stratos / NSC Sicherheitstechnik (brochure 05/2025). The images serve solely to identify the detectors. Brand and product names are the property of their respective owners. Further details in the Legal notice.
Not sure which detector is installed at your site?
Send us your detector list or a photo of the type plate. We will name the suitable replacement and tell you whether new bases are needed.