Sounder strobe alarms — also known as audio-visual alarm devices (VADs), sounder beacons, or siren strobe alarms — are the notification component of a fire detection and alarm system. Unlike smoke detectors and manual call points that DETECT or INITIATE a fire alarm, sounder strobes NOTIFY building occupants that a fire emergency has been detected and evacuation is required. They are the devices that actually TELL people to leave the building. This makes them uniquely important: without effective notification, even the best fire detection system fails to protect lives because occupants remain unaware of the danger.
Sounder strobes combine TWO alert modalities in a single device: an audible alarm (electronic siren/sounder — typically 95-120 dB) that penetrates walls and reaches people who are not looking at the device, AND a visual alarm (flashing strobe light — LED or xenon) that reaches hearing-impaired individuals, people wearing hearing protection in noisy environments, and sleeping people who may not respond to sound alone. This dual-sense approach is mandated by modern fire codes because it ensures EVERY building occupant receives an unambiguous fire emergency alert regardless of sensory ability. Under EN 54-3 (fire alarm sounders) and EN 54-23 (visual alarm devices), sounder strobes must be tested for sound pressure level consistency, alarm tone frequency content, strobe luminous intensity distribution and coverage pattern, environmental endurance, and long-term reliability.
The 4G Alarm Battery Powered from Wanlin Fire Control provides reliable, EN 54-3 / EN 54-23 certified fire alarm notification. As a direct manufacturer with over a decade of fire safety expertise, Wanlin produces sounder strobes across the full performance spectrum — from standard commercial indoor models to ATEX explosion-proof industrial units, from conventional wired to fully wireless 4G cellular — combining certified notification performance with factory-direct pricing that makes code-compliant fire alarm notification accessible for projects worldwide.

4G Alarm Battery Powered — Certified Sounder Strobe Alarm by Wanlin Fire Control
Product Category: Sounder Beacon per EN 54-3 & EN 54-23
Brand: Wanlin Fire Control
Device Type: Combined audible and visual fire alarm notification device — integrates high-output electronic sounder with synchronized strobe light in a single enclosure
Sound Pressure Level: ≥95 dB(A) at 1 meter per EN 54-3 (measured in anechoic chamber at rated voltage, all tones). Variable volume setting: high (95 dB(A)), medium (-6 dB), low (-12 dB), and configurable via APP.
Alarm Tones: 16 selectable tones including: continuous, slow whoop, alternating 2-tone, ISO 8201 T3 evacuation, BS 5839-1 fire alarm, DIN 33404 danger signal, Swedish SS 031711, Australian AS 1670, plus 8 user-programmable tones via APP
Strobe Technology: High-intensity LED strobe array — 32 ultra-bright LEDs with 360-degree visibility, flash rate configurable 0.5-2 Hz, luminous intensity >0.5 cd/m2 at 5m distance per EN 54-23 category W-2.5-7.5
EN 54-23 Classification: Category C-3-10 (Ceiling-mount, min 3m coverage diameter, illumination 0.5 cd/m2 at 10m distance) — suitable for open-plan offices and warehouses
Voice/Message Capability: Standard tone-only alert — the siren generates one of 8 selectable alarm tones without voice messaging. Voice module available as an optional add-on for models requiring pre-recorded evacuation messages
Synchronization: When multiple sounder strobes are connected on the same fire alarm loop or wireless network, all units synchronize their flash pattern and tone cadence automatically. Synchronized strobes prevent disorientation in corridors (asynchronous bright flashing can trigger photosensitive epilepsy or vertigo in sensitive individuals). Strobe synchronization also creates a visually coherent evacuation path when sounder strobes are visible simultaneously.
Visual Indicators: Power/Status LED (green flash every 30s = normal standby, network-connected models show solid green after last successful cloud check-in) / Alarm LED (integrated into strobe — red/white flashing pattern during alarm) / Fault LED (yellow double-flash every 10s = check device — low battery, network fault, or self-test failure)
Response Time: Alarm activation within 0.5 seconds of trigger signal — siren reaches full volume and strobe reaches full intensity near-instantaneously for immediate occupant alerting
Connectivity: 4G LTE Cat.1/Cat.M cellular — independent operation, no WiFi or gateway required. Operates anywhere with cellular coverage. Nano SIM slot.
SIM / Network: Nano SIM slot (supports global IoT SIM, multi-band 2G/3G/4G fallback)
Network Independence: 4G cellular connectivity — insert a Nano SIM card (not included) and the sounder strobe connects directly to the cloud. No WiFi, no hub, no gateway, no fire alarm panel required. Ideal for remote locations, construction sites, temporary structures, and areas without broadband infrastructure.
Power Supply: 24V DC powered (via fire alarm panel auxiliary output) with 2x 12V sealed lead-acid backup batteries (7Ah, 48-hour standby, 30-minute full-alarm operation)
Low Battery Warning: Audible chirp pattern (2 short beeps every 60 seconds) + yellow LED flash 30 days before battery depletion. Network-connected models send APP push notification and SMS alert to facility manager with estimated remaining battery life.
End-of-Life Warning: Distinctive chirp + yellow LED pattern when device reaches end of rated service life — typically 10 years from manufacture date per EN 54-3/EN 54-23. Sounder strobe should be replaced when end-of-life signal activates.
Self-Test: Push-button TEST — activates full system check: siren sounder (short tone burst), strobe LED array (brief flash pattern), battery voltage, and network connectivity. Automatic sensor health monitoring every 30 seconds with fault LED indication.
Tamper Protection: Sealed enclosure — factory-sealed unit cannot be opened without visible damage. Tamper-evident label across enclosure seam. Any attempt to access internal electronics is immediately apparent during visual inspection.
Installation: Wall or ceiling mount via universal mounting base — screws and wall plugs provided. Recommended mounting height: 2.0m-2.4m for wall-mounted VADs per EN 54-23 for optimal strobe coverage pattern. Twist-lock design enables easy device removal for maintenance without removing the base.
Strobe Coverage: Per EN 54-23 Category W-3-10: one sounder strobe covers a wall area of 3m width at 10m distance. Suitable for large open-plan offices, assembly halls, and warehouse aisles.
Sound Coverage: Covers approximately 80-120 sqm depending on acoustic environment (hard surfaces reflect sound and increase coverage; soft furnishings, carpets, and acoustic panels absorb sound and reduce coverage). Multiple units configured with synchronized operation for large open-plan floors.
Product Dimensions: 165 x 115 x 78 mm / approximately 420g (with battery)
Enclosure Material: UL94 V-0 flame-retardant polycarbonate — excellent impact strength and chemical resistance. Bright red (RAL 3001 signal red) with integrated sounder horn and strobe lens.
Operating Temperature: -10degC to +50degC
Operating Humidity: 10%-93% RH (non-condensing)
Storage Temperature: -20degC to +60degC
IP Rating: IP65 — suitable for outdoor sheltered use
Certification: EN 54-3:2001 / EN 54-23:2010 / CE / RoHS / FCC / UL 464 / UL 1638 / REACH
Warranty: 5 years manufacturer warranty against defects
Package Contents: Sounder strobe unit, wall/ceiling mounting base bracket with security screws, wall plugs and screws (M4 x 40mm), reset/test key, installation template, user manual (multi-language), quick-start guide, EN 54-3 / EN 54-23 Declaration of Performance, warranty card
Selecting the right manufacturing partner for fire notification devices is a decision with life-safety implications — acoustic and optical performance, certification compliance, and consistent alarm output are non-negotiable. Wanlin Fire Control has earned trust as a preferred partner for international buyers through:
✓ Genuine Manufacturing, Not Trading: We own and operate our ISO9001:2015 certified production facility with in-house injection molding, SMT assembly lines, anechoic sound testing chambers, photometric goniometer for EN 54-23 compliance verification, environmental testing chambers, and automated functional testing stations. You communicate directly with the factory — your technical questions about EN 54-3 sound pressure requirements, EN 54-23 coverage patterns, or strobe synchronization are answered by the acoustic and optical engineers who design and build the products.
✓ Full EN 54-3 and EN 54-23 Coverage: Our manufacturing platform produces sounder strobes across the full range of EN 54-23 coverage categories (W-2.5-7.5, W-3-10, C-3-10) and EN 54-3 sound pressure levels (95-120 dB) — all independently tested and certified by notified bodies. We also offer ATEX/IECEx certified variants for hazardous areas, IP65+ weatherproof models for outdoor installations, and extended temperature range models for cold storage and industrial applications.
✓ Multi-Technology Connectivity Portfolio: We manufacture conventional sounder strobes, addressable notification devices, wireless RF interconnected models, WiFi smart sounder strobes, 4G cellular sounder strobes, NB-IoT notification devices, and LoRaWAN sounder strobes — all from one supplier. You can address every customer segment without managing multiple supplier relationships.
✓ Partner-First Business Philosophy: We are a manufacturer for distributors, not a fire system brand competing with them. Flexible OEM/ODM with competitive MOQ, exclusive territory protection, comprehensive marketing support, and dedicated account management. Our success is measured by our partners' market success.
✓ Global Deployment Experience: Our sounder strobes protect lives in German commercial towers, French hospitals, Saudi petrochemical complexes, Indonesian government housing, UAE luxury hotels, UK e-commerce brands, Brazilian industrial bakeries, Singapore data centers, Canadian schools, South African cold storage, Thai shopping malls, and Indian metro stations.
The 4G Alarm Battery Powered offers distinct competitive advantages for international buyers:
1. Proven Acoustic and Optical Performance: Every sounder strobe undergoes individual functional testing — siren burst verification (sound pressure level measurement in anechoic chamber), strobe flash verification (flash rate, LED array current measurement, luminous intensity spot-check), and battery voltage verification. Speaker drivers are acoustically swept before assembly. When a Wanlin sounder strobe activates in an emergency, building occupants WILL hear and see it — guaranteed by design, verified by testing.
2. Certified Safety, Factory-Direct Value: EN 54-3 / EN 54-23 / CE (CPR 305/2011) certification combined with factory-direct pricing creates a value proposition competitors cannot match. Trading companies offer lower cost but uncertain certification and quality. Fire system brands offer certification but with brand premiums and rigid distribution models. Wanlin delivers both certification integrity and manufacturing economics.
3. The Right Sounder Strobe for Every Environment: Notification devices are NOT one-size-fits-all — the correct sound pressure level, strobe coverage category, connectivity method, and environmental rating depend on the installation. Wanlin produces the full spectrum: 95-120 dB sound output, W-2.5-7.5 through W-3-10 coverage, indoor through IP67 weatherproof, standard through ATEX/IECEx, and conventional wired through 4G cellular. One supplier covers all your customers' needs.
4. Dual-Sense Alert Effectiveness: Combined audible + visual notification in a single device ensures complete occupant coverage. The siren reaches people who cannot see the strobe (facing away, in adjacent rooms). The strobe reaches people who cannot hear the siren (hearing-impaired, wearing hearing protection, sleeping, using headphones). This redundancy is not a luxury — it is a life-safety requirement mandated by modern fire codes and accessibility regulations worldwide.
5. Regulatory-Ready for Global Markets: Every Wanlin sounder strobe is designed for certification. The core platform is lab-tested to EN 54-3/EN 54-23, and we manage country-specific certification (UL 464/UL 1638, VdS, LPCB, AS 7240.3/AS 7240.23, ABNT NBR 17240, KC) on your behalf. Multi-language voice messages available for 24+ languages.
6. 10-Year Replacement Cycle: EN 54-3/EN 54-23 and NFPA 72 recommend sounder strobe replacement after 10 years of service. Every device sold today generates a guaranteed replacement sale — creating predictable, recurring demand that builds long-term distributor business value.
Cost Comparison: The 4G Alarm Battery Powered from Wanlin delivers the same EN 54-3/EN 54-23 certified fire notification performance as Eaton/Cooper (GBP 25-60), Honeywell/System Sensor (USD 25-65), and Apollo/Gent (GBP 20-55) — at 50-70% below their wholesale cost when sourced factory-direct. The key difference: Wanlin is your manufacturing partner, not a competing brand with fixed distribution margins. You set your own market pricing and capture the full margin.
Whether you are evaluating sounder strobe suppliers, expanding your fire notification product catalog as a distributor, or specifying fire alarm notification equipment for a building project — these answers address the most common questions from international buyers considering Wanlin Fire Control as their 4G Alarm Battery Powered manufacturing partner.
Yes — Wanlin's platform supports multi-site, multi-device sounder strobe deployment at any scale. System architecture: Device layer — individual sounder strobes (conventional, addressable, wireless, 4G, or smart) installed throughout each building; Connectivity layer — sounder strobes communicate via wired loop, WiFi, 4G cellular, LoRaWAN, or RF wireless to monitoring hub; Cloud platform — Wanlin SmartCloud with multi-tenant architecture supporting unlimited devices and sites; Application layer — web dashboard, mobile APP, and API endpoints. Enterprise features: Hierarchical organization — organize devices by country, city, building, floor, zone; Role-based access; Automated testing reports; Real-time alerting with dashboard + SMS + email; Auditable event trail. Ideal for: hotel chains, hospital networks, school districts, industrial campuses, government building portfolios, real estate investment trusts.
Alert notification for 4G cellular sounder strobes follows multi-layered escalation: Local audible+visual alarm (immediate) — built-in siren (up to 120 dB) + high-intensity LED/xenon strobe activates instantly. This is the PRIMARY alert — warning building occupants to evacuate immediately. Simultaneous remote notification: APP push notification — within 3 seconds; SMS alert — to up to 10 configured emergency contacts; Phone call alert — automated voice call with text-to-speech location identification; Email alert — detailed event report. Escalation: Level 1 (0-60s) — push + SMS to primary; Level 2 (60-120s unacknowledged) — phone call + SMS to secondary; Level 3 (120+s unacknowledged) — escalation to emergency contacts. Cloud dashboard — 24/7 real-time display of all device statuses. For multi-site operations, a single dashboard shows sounder strobe status across all facilities.
Network requirements vary by model: Conventional sounder strobes — wired sounder circuit from fire alarm panel. Standard fire alarm cable. Addressable sounder strobes — addressable loop to compatible FACP. Wireless RF — communicate via encrypted RF to central hub (included). Smart WiFi — connect to existing 2.4GHz WiFi network, direct-to-cloud, no hub needed. 4G Cellular — insert Nano SIM card, connects directly to cellular towers. No WiFi, no broadband, no hub, no fire alarm panel required. NB-IoT — embedded SIM connects to telecom IoT network. LoRaWAN — connect to LoRaWAN gateway (3-15km range). Standalone — no network at all, built-in siren and strobe for local-only notification. The ability to offer EVERY connectivity option means you can serve every customer segment with one supplier.
Tamper-resistant features in Wanlin sounder strobes: Security screw enclosure — prevents unauthorized access to DIP switches and battery compartment; Tamper switch — detects if the device housing is opened or removed from the mounting base; Protective grille — protects the speaker cone from physical damage or blockage; Anti-tamper strobe lens — hardened polycarbonate lens resists impact and prevents blockage; Software lock — configuration settings (tone selection, volume, flash pattern) password-protected via APP or cloud platform; Event logging — any tamper event is logged with timestamp and sends notification to facility manager. These features ensure that sounder strobes remain fully functional and un-tampered with throughout their service life.
Environmental robustness varies by model: Standard indoor: -10degC to +55degC, IP41-IP44. Outdoor/weatherproof: -20degC to +60degC, IP55-IP65, UV-stabilized enclosure. Industrial-grade: -25degC to +70degC, IP65-IP67, corrosion-resistant enclosure. Cold storage: -30degC to +50degC, IP65, specialized materials resistant to low-temperature embrittlement. ATEX/IECEx explosion-proof: Certified for Zone 1/2 (gas) and Zone 21/22 (dust), flameproof enclosure (Ex d) or intrinsically safe (Ex i). Marine/offshore: Salt spray corrosion tested (ISO 9227, 1000+ hours), IP66/IP67, 316L stainless steel enclosure. High-noise industrial: 120-130 dB output for environments with 95-105 dB ambient noise (must be 5-15 dB above ambient). Wanlin manufactures sounder strobes for ALL these environments — one supplier covers every deployment scenario.
A systematic deployment approach: Step 1 — Determine the fire alarm system category (L1-L5 per BS 5839-1). Step 2 — Identify all occupied areas that require notification. Step 3 — Calculate audible coverage: measure the ambient noise level in each area, ensure the sounder strobe produces at least 65 dB(A) or 5 dB above ambient at ALL points in the area. A 100 dB sounder covers approximately 80-120 sqm depending on acoustic conditions. Walls and doors attenuate sound — typically one sounder per room/enclosed space. Step 4 — Calculate visual coverage: for wall-mounted EN 54-23 Category W-2.5-7.5, one unit covers a 2.5m x 7.5m room. For Category W-3-10, one unit covers a 3m x 10m room. Step 5 — Corridors: one sounder strobe every 15m per BS 5839-1. Step 6 — For a typical 10-story office building with 500 sqm per floor: approximately 5-8 sounder strobes per floor, 50-80 total. Step 7 — Select device type: standard indoor for offices, IP65 for outdoor stairwells, voice evacuation for assembly areas. Wanlin provides deployment planning support — send us your floor plans.
Full documentation package: Mandatory certifications — EN 54-3 test report, EN 54-23 test report, EC Certificate of Constancy of Performance, Declaration of Performance (DoP), CE marking certificate, ISO9001:2015 certificate. Product documentation — datasheet with full specifications and dimensional drawings, installation manual (multi-language), user operation manual, maintenance log template, acoustic coverage calculation spreadsheet, photometric coverage diagrams. Export documentation — Commercial Invoice (HS code 8531.10), Packing List, Certificate of Origin, GSP certificates (Form A/E/F), Bill of Lading/Air Waybill. Country-specific: SASO CoC/SABER, SONCAP, PVoC, and any destination-country specific requirements. All documentation provided digitally same-day after shipment with originals couriered.
Every Wanlin sounder strobe undergoes rigorous production testing: Acoustic: anechoic chamber measurement — sound pressure level verification at 1m (all tones), frequency sweep analysis, and tone frequency accuracy verification per EN 54-3. Photometric: strobe flash verification — flash rate, flash pattern, LED array current measurement, luminous intensity spot-check. Production line: SMT assembly AOI, individual unit functional test (power-on + siren burst + strobe flash + self-test + network connectivity check), battery voltage verification. Environmental sample testing: temperature cycling, damp heat, vibration, and salt spray (for IP65+ models). Batch traceability: every unit serialized and traceable to raw material lots, production date/shift, and all test records.
Wanlin Fire Control's 4G Alarm Battery Powered has proven its life-safety notification value across diverse deployment scenarios worldwide:
✓ Commercial Office Tower Notification System — Germany: A German commercial property developer constructing a 42-story Grade A office tower in Frankfurt specified Wanlin's EN 54-3/EN 54-23 certified addressable sounder strobes for all occupied areas. The building required 328 sounder strobes — wall-mounted Category W-3-10 units in open-plan office floors (approximately 4 per 500 sqm floor), Category W-2.5-7.5 units in individual offices and meeting rooms, ceiling-mounted units in the ground-floor atrium, weatherproof IP65 units in basement parking, and voice evacuation units in assembly areas and conference floors. Wanlin provided: EN 54-3 sound pressure verification — minimum 75 dB(A) at all occupied positions (exceeding the 65 dB(A) requirement), EN 54-23 photometric coverage maps for each floor, and full documentation package for Deutsche Pruefstelle and local fire authority approval. The system passed TUV commissioning on first submission with zero sounder strobe-related snags. The developer has now specified Wanlin notification devices as standard across their 4.5 million sqft German commercial portfolio.
✓ Oil & Gas ATEX Explosion-Proof Sounder Strobe Deployment — Saudi Arabia: A Saudi Arabian petrochemical complex with 18 processing units, tank farms, and loading facilities deployed Wanlin's ATEX/IECEx certified explosion-proof sounder strobes for hazardous area fire notification. Previous alarm devices were limited to non-hazardous admin buildings — leaving classified process areas without fire alarm notification. Wanlin provided: ATEX Zone 1 / IECEx certified sounder strobes (Ex d IIC T6 flameproof enclosure), 316L stainless steel construction for desert-coastal environment (high ambient temperature to +65degC, salt-laden humidity, sand/dust), 120 dB sound output for noisy processing areas (ambient noise 95-105 dB from pumps, compressors, and flare stacks), high-intensity xenon strobe (5 Joule flash, red lens) for maximum visibility under the intense Arabian sun, and GPS-labeled units for emergency response coordination across the 4 sqkm complex. Deployment: 720+ units across 18 facilities. The sounder strobes have been activated in 3 genuine emergencies (gas leak, pump fire, tank overfill) — in all cases, the combined 120 dB siren + high-intensity strobe ensured full facility evacuation within the prescribed 3-minute target, even in the noisiest processing areas where personnel wear hearing protection.
✓ Hotel Chain Voice Evacuation Deployment — UAE: A UAE hospitality group operating 40 luxury hotels and resorts deployed Wanlin's voice evacuation sounder strobes across all properties. The deployment was driven by: updated UAE Fire & Life Safety Code requiring voice evacuation in hotels with more than 50 rooms, post-incident review of a kitchen fire where international guests did not understand the meaning of the alarm siren, and insurance requirement for documented voice evacuation capability. Wanlin provided: 4,200+ addressable sounder strobes with built-in voice evacuation module, EN 54-3/EN 54-23 certified with Arabic/English pre-recorded messages, distribution per property: 1-2 per guest floor corridor, 1 per lobby/atrium, 2 per restaurant/ballroom, 1 per kitchen, 1 per pool/deck area; Arabic emergency message: 'يرجى الانتباه. تم الإبلاغ عن حريق. يرجى إخلاء المبنى فورا باستخدام أقرب مخرج. لا تستخدم المصاعد' ('Attention. A fire has been reported. Please evacuate the building immediately using the nearest exit. Do not use the elevators.'); integration with hotel BMS for automated HVAC shutdown and elevator recall on fire alarm; central monitoring at each property's security office with cloud connection to group safety director in Dubai. Zero fire-related guest injuries post-deployment, guest satisfaction scores for 'safety and security' increased 18%, and 14% fire insurance premium reduction across the group.
Wanlin Fire Control structures partnerships around your business model. As a direct manufacturer with full in-house production and R&D, we offer flexible partnership models:
Brand Distributor: Purchase Wanlin-branded 4G Alarm Battery Powered at distributor pricing → build the Wanlin brand in your territory → we provide marketing materials, technical training, and protected territory rights.
OEM / Private Label Partner: We manufacture the 4G Alarm Battery Powered to your specifications — your brand, your packaging, your language voice messages and markings — you own the customer relationship and channel. MOQ from 1000 units.
Project / Tender Partner: Joint bidding on government, commercial, or industrial fire safety projects. We provide technical proposals, EN 54-3/EN 54-23 certification documentation, reference projects, and competitive bulk pricing for large-scale deployments.
Technology / Assembly Partner: For markets requiring local content — we supply speaker driver modules, LED arrays, and PCBs for local assembly, meeting import substitution requirements while maintaining quality and acoustic performance.
E-commerce / FBA Partner: We manufacture, you sell online — full Amazon FBA prep, dropshipping, and direct-to-consumer fulfillment supported. White-label options available.
Current partnership opportunities: Exclusive country/regional distributorships available with protected territories, white-label and OEM manufacturing programs with competitive MOQ (from 1000 units), joint venture or local assembly partnerships for large markets, technology licensing for local manufacturing, and government tender partnership with full EN 54-3/EN 54-23 certification documentation.
Sounder strobe alarms are a mandatory and non-negotiable component of fire detection and alarm systems worldwide — required by building fire codes in every commercial, industrial, public, and multi-occupancy residential building. They provide the critical notification function without which fire detection is useless: the ability to instantly alert ALL building occupants — regardless of sensory ability, location, or activity — that they must evacuate immediately. The global sounder strobe market is experiencing steady, regulation-driven growth fueled by construction activity, fire code modernization (particularly voice evacuation and VAD accessibility mandates), smart building adoption, and the ongoing 10-year replacement cycle of aging notification device fleets.
The 4G Alarm Battery Powered from Wanlin Fire Control represents a strategic product opportunity for businesses participating in the global fire safety market. As a direct manufacturer, Wanlin offers capabilities that neither trading companies nor fire system brands can match: factory-direct pricing with full EN 54-3/EN 54-23 certification, the complete technology spectrum (from conventional wired through 4G cellular to ATEX-certified) from one supplier, built-in voice evacuation capability, flexible OEM/ODM with white-label options, and a partnership model built on shared market success rather than channel competition.
Whether you are launching a sounder strobe product line, expanding an existing fire safety catalog, sourcing fire notification equipment for a code-compliance program, or exploring private-label manufacturing — Wanlin Fire Control has the certified products, production capacity, and partnership commitment to support your business objectives.
Contact our export team today to request evaluation samples and discuss volume pricing for your market.
Wanlin Fire Control — Your Direct Source Factory for Certified Sounder Strobe Alarms. ISO9001:2015 Certified | EN 54-3:2001 / EN 54-23:2010 / CE (CPR 305/2011) / FCC / RoHS Approved | Global Shipping & Export Documentation Support. Partner with the manufacturer — not a middleman. We welcome inquiries from distributors, importers, OEM partners, MEP contractors, government procurement, and project buyers worldwide.