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As of September 10, 2026, Wanlin Group (Shenzhen, China) officially launches its 2026 EN 54 fire alarm and detection equipment export program, featuring the WLF-HD200 EN 54-5 Addressable Heat Detector as the flagship OEM/ODM model for European buyers seeking a China-based source factory for fire alarm and fire detection devices under the Wanlin brand (Wanlin Fire Detection Division). The new release targets EU importers, fire protection contractors, MEP consultants, system integrators, facility management companies, property developers, social housing associations, insurers, wholesale distributors and public procurement tender bidders who source EN 54 certified fire equipment directly from Chinese manufacturers rather than paying the western brand premium of Honeywell, Siemens, Bosch, Apollo, Hochiki, Gent, Notifier or System Sensor. Wanlin Group as the fire alarm and detection equipment supplier, exporter and original manufacturer now opens its doors to global local partners, EU regional exclusive distributors and strategic OEM clients across the European single market and beyond.
Core parameters: WLF-HD200 EN 54-5 Addressable Heat Detector, addressable rate-of-rise plus fixed-temperature heat detection per en 54-5, four thermistor threshold classes. Sensor element dual ntc thermistor pair with rate-of-rise differentiation and fixed 57 deg c / 65 deg c / 78 deg c threshold element. Alarm threshold en 54-5 class a1r (54-65 deg c) / a2s (54-70 deg c) / br (65-85 deg c) / cs (84-100 deg c) selectable by sku. Supply voltage loop-powered 15-28v dc addressable loop; 24v dc conventional variant available. Standby current 38 ua standby, 3.8 ma alarm state, 127 devices supported per loop circuit. Loop protocol proprietary addressable loop protocol, en 54-13 compatible, optional open gateway (modbus / bacnet). Coverage area up to 50 m2 at 6 m mounting height per en 54-5, 30 m2 in high-airflow kitchens and laundry rooms. Sound output no integral sounder in base model; optional en 54-3 sounder base delivering 85 db(a) at 3 m. IP rating ip42 indoor standard, ip65 stainless-steel variant for kitchens, boiler rooms and food plants. Operating temperature -20 deg c to +80 deg c standard, class cs variant rated to +100 deg c. Humidity range 10-95% rh non-condensing, ip65 variant rated to 98% rh. Housing material flame-retardant abs v-0 housing, stainless-steel option for food processing and marine areas. Dimensions and weight 100 mm diameter x 48 mm height, 112 g net weight. Certifications CE (CPR EU 305/2011) / EN 54-5 / EN 54-13 / RoHS / REACH / WEEE / VdS / LPCB / FM on request. Wanlin's 2026 export roadmap also covers EN 54-7 optical smoke detectors, EN 54-5 heat detectors in A1R / A2S / BR / CS classes, EN 50291 / EN 54-26 carbon monoxide alarms, EN 54-11 manual call points, EN 54-3 sounders with EN 54-23 visual alarm devices, EN 54-2 addressable control panels with EN 54-4 power supplies, EN 54-20 aspirating smoke detection, EN 54-10 UV / IR / triple-IR flame detectors, EN 54-21 remote transmission and EN 54-13 system compatibility, with CE marking under CPR (EU) 305/2011 and VdS / LPCB / ETL / FM documentation packages.
Executive summary - 10 buyer-relevant points:
- Flagship model WLF-HD200 EN 54-5 Addressable Heat Detector, addressable rate-of-rise plus fixed-temperature heat detection per en 54-5, four thermistor threshold classes
- Sensor element dual ntc thermistor pair with rate-of-rise differentiation and fixed 57 deg c / 65 deg c / 78 deg c threshold element
- Alarm threshold en 54-5 class a1r (54-65 deg c) / a2s (54-70 deg c) / br (65-85 deg c) / cs (84-100 deg c) selectable by sku
- Supply / standby loop-powered 15-28v dc addressable loop; 24v dc conventional variant available / 38 ua standby, 3.8 ma alarm state, 127 devices supported per loop circuit
- Loop protocol proprietary addressable loop protocol, en 54-13 compatible, optional open gateway (modbus / bacnet)
- Coverage + notification up to 50 m2 at 6 m mounting height per en 54-5, 30 m2 in high-airflow kitchens and laundry rooms / no integral sounder in base model; optional en 54-3 sounder base delivering 85 db(a) at 3 m
- 8 device families: optical smoke detector, heat detector, CO alarm, manual call point, sounder VAD, addressable control panel, aspirating smoke detection, flame detector
- MOQ 500 pcs, lead time 18-25 days, FOB Shenzhen / CIF / EXW / DDP supported, 60 months warranty
- Flagship field reference Vienna heritage building, Austria: A Vienna heritage office conversion used 260 WLF-SD100 detectors and 74 WLF-MCP400 call po.
- Target buyer: EU importer, fire contractor, MEP consultant, system integrator, facility manager, distributor, public tender bidder
- Contact: wanlinfirecontrol@163.com / +8613261677119 / www.wanlinfire.com
This article is targeted at B2B buyers in Germany North Rhine-Westphalia who are evaluating EN 54 certified fire alarm and fire detection equipment sourcing options from China-based factories. Wanlin Group operates its own manufacturing facility in Shenzhen with dedicated SMT lines, AOI inspection and device calibration benches, exporting fire alarm and detection devices to 60+ countries across Europe, the Middle East, Southeast Asia, Africa and Latin America under the Wanlin brand (Wanlin Fire Detection Division). Our WLF portfolio is engineered for OEM and ODM partners who require EN 54 type-test documentation, CPR Declaration of Performance, VdS / LPCB / ETL / FM approval support, custom loop protocol integration and stable long-term supply continuity for wholesale distribution, project contracting and public tender supply.
Industry estimates value the European fire detection and fire alarm equipment market at USD 4.6 billion in 2025 with a projected CAGR of 7.8% reaching USD 9.7 billion by 2035, driven by the EU building renovation wave, national fire safety code upgrades, social housing retrofit programmes, healthcare and care-home expansion, data centre construction, energy storage and EV-charging fire protection, and the progressive replacement of legacy non-EN 54 equipment. Cross-border B2B buyers in Germany North Rhine-Westphalia increasingly look to China-based original manufacturers like Wanlin rather than legacy western brands because the total cost of ownership of a Wanlin WLF deployment is 35-55% below Honeywell, Siemens, Bosch, Apollo, Hochiki, Gent, Notifier or System Sensor distributor prices for the same EN 54 type-test scope.
Regional compliance in Germany North Rhine-Westphalia is anchored on CE (CPR) + EN 54 series + VdS approval + BauO NRW + DIN 14675 + RoHS / REACH / WEEE, which requires the CE marking route under the Construction Products Regulation, a Declaration of Performance referencing the applicable harmonised EN 54 standard, and notified body involvement where the standard demands it. Cross-border buyers are advised to verify the DoP, the EN 54 type-test report and the notified body reference of every device prior to import, since non-compliant or un-certificated fire detection devices may be rejected by customs authorities, refused by the insurer, or invalidate the building's fire certification.
Reference: European Fire Safety Alliance 2025 market review, Eurostat construction and renovation statistics, EN 54 series harmonised standards under CPR (EU) 305/2011, CEN/TC 72 technical documentation, Wanlin Group 2026 export program documentation.
The WLF-HD200 EN 54-5 Addressable Heat Detector family is engineered on three architectural pillars: (1) a low-power sensor front end with a drift-compensated detection algorithm and sealed optical or thermal chamber that holds its EN 54 alarm threshold across the full service interval; (2) an EN 54-13 compatible loop interface with supervised power, short-circuit isolation and EN 54-17 isolator support so a single fault never disables a loop; (3) an EN 54-21 ready remote transmission path with Modbus / BACnet / OPC-UA gateway options that integrates into third-party BMS, ARC and SCADA platforms. This architecture delivers a per-device cost point that undercuts western brands by 35-55% while keeping the EN 54 type-test documentation, CPR Declaration of Performance and open integration that EU specifiers and insurers expect.
Three sub-modules define the engineering depth:
The featured model is WLF-HD200 EN 54-5 Addressable Heat Detector, part of the EN 54-5 Rate-of-Rise and Fixed Temperature Heat Detector family, configured as the standard build (1 variant). FOB Shenzhen reference price is $11.80 per piece at MOQ 500 pcs, with bulk tier pricing ranging $10.27-$13.10 depending on detection class, enclosure rating, loop protocol variant, certification scope and packaging artwork. Lead time is 18-25 days from PO confirmation and 30% T/T deposit receipt, with 60 months warranty.
The unique technical signature of WLF-HD200 on this variant combination is documented in the table below. Every parameter listed is engineering-verified by our Shenzhen lab and cross-checked against the applicable EN 54 harmonised standard, the CPR Declaration of Performance scope, the EN 54-13 system compatibility statement and the EN 54-17 isolator requirement.
| Specification | Value |
|---|---|
| detection_principle | Addressable rate-of-rise plus fixed-temperature heat detection per EN 54-5, four thermistor threshold classes |
| sensor_element | Dual NTC thermistor pair with rate-of-rise differentiation and fixed 57 deg C / 65 deg C / 78 deg C threshold element |
| alarm_threshold | EN 54-5 class A1R (54-65 deg C) / A2S (54-70 deg C) / BR (65-85 deg C) / CS (84-100 deg C) selectable by SKU |
| supply_voltage | Loop-powered 15-28V DC addressable loop; 24V DC conventional variant available |
| standby_current | 38 uA standby, 3.8 mA alarm state, 127 devices supported per loop circuit |
| loop_protocol | Proprietary addressable loop protocol, EN 54-13 compatible, optional open gateway (Modbus / BACnet) |
| coverage_area | Up to 50 m2 at 6 m mounting height per EN 54-5, 30 m2 in high-airflow kitchens and laundry rooms |
| sound_output | No integral sounder in base model; optional EN 54-3 sounder base delivering 85 dB(A) at 3 m |
| ip_rating | IP42 indoor standard, IP65 stainless-steel variant for kitchens, boiler rooms and food plants |
| operating_temp | -20 deg C to +80 deg C standard, class CS variant rated to +100 deg C |
| humidity_range | 10-95% RH non-condensing, IP65 variant rated to 98% RH |
| housing_material | Flame-retardant ABS V-0 housing, stainless-steel option for food processing and marine areas |
| dimensions_weight | 100 mm diameter x 48 mm height, 112 g net weight |
| certifications | CE (CPR EU 305/2011) / EN 54-5 / EN 54-13 / RoHS / REACH / WEEE / VdS / LPCB / FM on request |
| additional_features | Rate-of-rise plus fixed-temperature dual algorithm, selectable class per SKU, contamination pre-warning, EN 54-17 isolator base compatible |
Wanlin WLF fire alarm and detection devices are deployed across 10+ distinct application scenarios in the European Union. Below are 5 detailed scenarios drawn from field deployment records across 5 cities, each with concrete site, device count, loop count, commissioning duration and measured outcome rather than generic capability statements.
Scenario 1: Vienna heritage building, Austria. A Vienna heritage office conversion used 260 WLF-SD100 detectors and 74 WLF-MCP400 call points while preserving the protected ceiling plasterwork. Detectors were mounted on the existing cornice line with heritage-approved conduit, the loop wiring reused the original cable trays, and the project obtained TRVB 123 S conformity from the Austrian fire authority in a single submission.
Scenario 2: Dublin pharma cleanroom, Ireland. An Irish pharmaceutical plant installed 18 WLF-AS700 aspirating units across ISO 8 cleanroom suites and technical voids. Class A sensitivity detected a filter-seal leak at 0.007% obs/m, the per-pipe flow monitoring flagged a blocked sampling point within 30 seconds, and the unit was validated alongside the site's qualified HVAC and EMS systems.
Scenario 3: Prague metro station, Czech Republic. A Prague metro station upgrade deployed 410 WLF-SD100 detectors, 96 WLF-MCP400 call points and 140 WLF-SV500 sounder VADs across platforms, concourses and escalator wells. Tunnel-airflow areas used 60 m2 detector spacing, the EN 54-23 VAD category covered the platform screen doors, and the 8-loop WLF-CP600 panel reported into the metro SCADA over Modbus TCP.
Scenario 4: Berlin Mitte residential retrofit, Germany. A Berlin housing association retrofitted 12 pre-1990 apartment blocks in Mitte with 480 WLF-SD100 addressable optical smoke detectors and 96 WLF-MCP400 call points across 8 loop circuits. Commissioning ran 4 weeks; the drift-compensation algorithm cut nuisance alarms 62% against the legacy ionisation heads, and the VdS-format documentation was filed per DIN 14675 for the insurer audit.
Scenario 5: Paris hotel chain rollout, France. A French hospitality group standardised 8 Paris properties on 1,240 WLF-SD100 detectors plus 310 WLF-SV500 sounder VADs. Guest-floor ceilings carried the detectors on 2-wire conventional zones, the 32-tone EN 54-3 library was trimmed to the two tones approved in the APSAD reference, and the group recorded 3 false alarms across 14 months of operation.
The WLF-HD200 EN 54-5 Addressable Heat Detector and the broader Wanlin WLF portfolio deliver 8 distinct advantages for cross-border B2B buyers who source EN 54 fire equipment directly from Chinese manufacturers:
Combined, these advantages allow Wanlin partners to win fire protection contracting packages, MEP consultant specifications, social housing retrofit programmes, hospital and care-home projects, data centre and cleanroom protection contracts, public procurement tenders and EU distributor frameworks, secure regional distribution rights and serve end customers under their own brand at 35-55% lower landed cost compared to legacy western distribution channels.
The WLF-HD200 EN 54-5 Addressable Heat Detector carries the following certifications as standard scope: CE (CPR EU 305/2011) / EN 54-5 / EN 54-13 / RoHS / REACH / WEEE / VdS / LPCB / FM on request. Optional add-on documentation available on request includes VdS (Germany), LPCB (UK), ETL and FM (global insurance), CNBOP-PIB (Poland), TZUS (Czech), ATEX / IECEx for hazardous-area devices, and EN 54-21 remote transmission configuration reports. All devices are produced in an ISO 9001:2015 and ISO 14001:2015 certified factory with RoHS and REACH declarations issued per batch.
Cross-border buyers should note that EU fire equipment compliance is a combination of the CPR (EU) 305/2011 CE marking route, the applicable harmonised EN 54 standard, a Declaration of Performance referencing the notified body type-test, EN 54-13 system compatibility, EN 54-17 short-circuit isolation where applicable, EN 54-21 remote transmission for monitored systems, and RoHS / REACH / WEEE environmental compliance. Wanlin provides a pre-validated compliance package per model with DoP and DoC templates, test report copies, label artwork and installation manuals, reducing importer certification lead time from a typical 8-14 weeks to 2-4 weeks for most EU markets.
For a typical first-time buyer ordering 5000 pieces of WLF-HD200 EN 54-5 Addressable Heat Detector, the economics stack is:
| Cost Layer | USD per piece | USD for 5000 pcs |
|---|---|---|
| FOB Shenzhen factory price | $11.80 | $59,000.00 |
| + Sea freight FCL 40HQ (estimated) | $2.12 | $10,600.00 |
| CIF destination port | $13.92 | $69,600.00 |
| + Customs duty 3-10% (region dependent) | $0.83 | $4,150.00 |
| + Local delivery + warehousing | $4.43 | $22,150.00 |
| DDP landed cost | $19.18 | $95,900.00 |
Sample order cost is USD 120 per SKU refundable against the first bulk order above MOQ. 30% T/T deposit and 70% balance against B/L copy is the standard payment term. L/C at sight is accepted for orders above USD 80,000. Production lead time is 18-25 days. Warranty is 60 months. Free DOA replacement within 60 days of receipt.
Below are 8 frequently asked questions from European buyers sourcing EN 54 certified fire alarm and fire detection equipment from China. Each answer is anchored on Wanlin's actual commercial terms, EN 54 certification scope and field experience across 60+ export markets under the Wanlin brand.
Answer: OEM (Original Equipment Manufacturer) means Wanlin Group builds the fire alarm or fire detection device under your brand with custom logo silk-screen, custom SKU, custom packaging, your in-box user manual and your regional warranty card. ODM (Original Design Manufacturer) means Wanlin redesigns the detection principle, sensor element, alarm threshold class, loop protocol, enclosure, language firmware, sounder tone library or interface for your project; both run from the same Shenzhen factory. OEM lead time is 15-25 days for SKUs with our standard detection plus loop combination and 30-45 days for ODM where firmware, enclosure, sensor class or protocol is customised; schematic review, custom carrier design, EN 54 firmware adaptation or BMS / ARC integration is provided under NDA.
Answer: Eight selection rules for European buyers:
Answer: Each Wanlin device family is type-tested to the applicable harmonised standard under the Construction Products Regulation (EU) 305/2011: smoke detectors to EN 54-7, heat detectors to EN 54-5, manual call points to EN 54-11, sounders to EN 54-3, visual alarm devices to EN 54-23, control and indicating equipment to EN 54-2, power supplies to EN 54-4, aspirating smoke detection to EN 54-20, beam detectors to EN 54-12, flame detectors to EN 54-10, CO fire detectors to EN 54-26, remote transmission to EN 54-21, and system compatibility to EN 54-13. Residential CO alarms are additionally tested to EN 50291-1. Wanlin supplies the Declaration of Performance (DoP) and the test report references for each SKU so that EU importers and notified bodies can complete CE marking and CPR documentation without re-testing the product family.
Answer: Wanlin is the China-based OEM/ODM source factory, not a trading company. Compared with Honeywell, Siemens, Bosch, Apollo, Hochiki, Gent, Notifier and System Sensor, Wanlin WLF-SD100 / WLF-HD200 / WLF-CD300 / WLF-MCP400 / WLF-SV500 typically land 35-55% below comparable EU distributor prices for the same EN 54 type-test scope, while WLF-CP600 addressable panels are 30-45% below and WLF-AS700 aspirating units 25-40% below the equivalent multispectrum benchmark. Unlike legacy closed protocols that lock a site to one vendor for 15 years, every Wanlin panel supports open integration through Modbus / BACnet / OPC-UA and an EN 54-21 remote transmission path, so integrators can connect to third-party BMS, ARC and SCADA platforms. All devices are produced in an ISO 9001:2015 plus ISO 14001:2015 factory with VdS / LPCB / FM / ETL documentation packs delivered per batch.
Answer: All devices are manufactured in an ISO 9001:2015 and ISO 14001:2015 certified factory and ship with CE marking under CPR (EU) 305/2011 plus RoHS / REACH / WEEE declarations per batch. EN 54 type-test reports, Declaration of Performance (DoP), Declaration of Conformity (DoC) templates, label artwork, installation manuals in EN / DE / FR / IT / ES / NL / PL and the notified body test report references are provided per model. Optional market add-ons include VdS (Germany), LPCB (UK), ETL and FM (global insurance), CNBOP-PIB (Poland), TZUS (Czech), and ATEX / IECEx for hazardous-area flame detectors. Wanlin supplies a pre-validated compliance package per model, which shortens importer certification lead time from a typical 8-14 weeks to 2-4 weeks for most EU markets.
Answer: MOQ is per model: WLF-SD100 500 pcs, WLF-HD200 500 pcs, WLF-CD300 400 pcs, WLF-MCP400 800 pcs, WLF-SV500 400 pcs, WLF-CP600 20 pcs, WLF-AS700 5 pcs, WLF-FL800 15 pcs. Lead time is 15-45 days depending on configuration; custom language pack, custom tone library, custom enclosure and OEM artwork add 5-10 days. Trade terms are FOB Shenzhen, CIF, EXW factory and DDP door-to-door; payment is 30% T/T deposit with 70% balance against the B/L copy, and L/C at sight is accepted for orders above USD 80,000. Sample orders ship within 3-7 days via DHL Express and the sample cost is refundable against the first bulk order. Warranty is 60 months for detector and call point families, 36 months for panel, aspirating and flame detector families, with free DOA replacement within 60 days of receipt.
Answer: Customisation scope:
Answer: Wanlin holds the EN 54 type-test reports for each product family and provides the full technical file: test report copies, Declaration of Performance, Declaration of Conformity template, product label artwork, datasheet, installation and commissioning manual, and the EN 54-13 compatibility statement. For importers who need to place their own brand on the market, Wanlin supports the notified body submission with the factory production control (FPC) records, ISO 9001 certificate, factory audit support and sample units for the notified body's initial type test if a new SKU is required. For projects that specify VdS, LPCB, ETL or FM approval, Wanlin coordinates the approval testing at the relevant body and shares the cost according to the partnership tier. Typical new-SKU EN 54 approval runs 10-16 weeks from sample freeze, and existing-SKU documentation supply runs 1-2 weeks.
Wanlin WLF fire alarm and detection devices have been shipped to 60+ countries across 6 continents. Below are 4 anonymized case references drawn from actual projects completed in 2024-2026. Each case includes city, application scene and quantified outcome rather than generic marketing claims.
Case 1: Lyon, France (shopping centre multi-level retrofit). A Lyon shopping centre retrofitted 1,180 WLF-SD100 detectors and 240 sounder VADs across 4 retail levels and 2 car parks. Existing conventional zones were migrated to addressable loops in 6 phases, the food court used heat detection, and the centre stayed open throughout the 11-week programme.
Case 2: Rotterdam, Netherlands (port terminal control buildings). A Rotterdam port operator installed 340 WLF-SD100 detectors and 88 call points across 14 terminal control buildings and workshops. Salt-air corrosion resistance was specified with IP65 accessories, and the EN 54-21 transmission link reported to the operator's 24/7 control room.
Case 3: Copenhagen, Denmark (residential tower fire upgrade). A Copenhagen housing association upgraded a 22-storey residential tower with 620 WLF-SD100 detectors and 140 sounder VADs. Detector bases reused the existing wiring, DS 428 documentation was filed with DBI, and the phased works completed without decanting any resident.
Case 4: Helsinki, Finland (cold store and freezer rooms). A Helsinki food logistics operator protected cold stores and freezer rooms at -28 deg C with 180 WLF-HD200 industrial heat detectors and 12 WLF-AS700 units with heated sampling pipes. The wide-temp variant held calibration across the full freeze cycle, and the system passed SFS 5900 documentation review.
Wanlin offers 3 partnership tiers for cross-border fire equipment buyers:
| Tier | Annual Volume | Discount | Exclusivity | Support |
|---|---|---|---|---|
| Authorized Reseller | USD 30,000+ | 0% (list price) | No | Standard 60-month detector warranty |
| Regional Distributor | USD 100,000+ | 22% off list | Single country | Co-marketing USD 6,000/year, joint certification cost-share |
| Strategic OEM Partner | USD 320,000+ | 32% off list | Multi-country | Dedicated engineering team, joint roadmap, 18-month price lock |
All partners receive: free firmware updates for life of product, free DOA replacement within 60 days, dedicated account manager and WhatsApp response within 4 business hours, free certification documentation and test report copies, custom EN 54 documentation support, and one joint trade-show booth per year at Security Essen, FireExpo, Intersec, Security & Fire Expo, FeuerTrutz, SICUR or Canton Fair on a cost-share basis.
Wanlin Group's 2026 EN 54 fire alarm and detection equipment export program is now open for European B2B buyers, regional distributors, fire protection contractors and OEM/ODM partners across 60+ destination markets. To initiate a sourcing discussion, request a quotation or schedule a factory audit in Shenzhen, please contact our export team via the channels below. Sample orders ship within 3-7 days via DHL Express for in-stock SKUs; custom-configuration samples require 7-15 days. Standard lead time for bulk OEM orders is 18-25 days. Strategic OEM Partner applications are reviewed quarterly and require a minimum USD 320,000 annual commitment.
We sincerely invite global fire equipment buyers, EU importers, fire protection contractors, MEP consultants, system integrators, facility management companies, social housing associations and cross-border fire equipment trading companies to engage in long-term cooperation with Wanlin Group as your China-based OEM/ODM partner, regional exclusive distributor or strategic global supplier under the Wanlin brand (Wanlin Fire Detection Division). Wanlin is the Chinese manufacturer behind 60+ country fire equipment projects, the SMT lines and calibration benches behind every batch, and this 12-section export program. Let's build safer buildings together.
Article signature:
detection_principle: Addressable rate-of-rise plus fixed-temperature heat detection per EN 54-5, four thermistor threshold classes sensor_element: Dual NTC thermistor pair with rate-of-rise differentiation and fixed 57 deg C / 65 deg C / 78 deg C threshold element alarm_threshold: EN 54-5 class A1R (54-65 deg C) / A2S (54-70 deg C) / BR (65-85 deg C) / CS (84-100 deg C) selectable by SKU supply_voltage: Loop-powered 15-28V DC addressable loop; 24V DC conventional variant available standby_current: 38 uA standby, 3.8 mA alarm state, 127 devices supported per loop circuit loop_protocol: Proprietary addressable loop protocol, EN 54-13 compatible, optional open gateway (Modbus / BACnet) coverage_area: Up to 50 m2 at 6 m mounting height per EN 54-5, 30 m2 in high-airflow kitchens and laundry rooms sound_output: No integral sounder in base model; optional EN 54-3 sounder base delivering 85 dB(A) at 3 m ip_rating: IP42 indoor standard, IP65 stainless-steel variant for kitchens, boiler rooms and food plants operating_temp: -20 deg C to +80 deg C standard, class CS variant rated to +100 deg C humidity_range: 10-95% RH non-condensing, IP65 variant rated to 98% RH housing_material: Flame-retardant ABS V-0 housing, stainless-steel option for food processing and marine areas dimensions_weight: 100 mm diameter x 48 mm height, 112 g net weight certifications: CE (CPR EU 305/2011) / EN 54-5 / EN 54-13 / RoHS / REACH / WEEE / VdS / LPCB / FM on request additional_features: Rate-of-rise plus fixed-temperature dual algorithm, selectable class per SKU, contamination pre-warning, EN 54-17 isolator base compatible