GZ-EWH-050 / GZ-EWH-100
High-power IP65-rated earthquake warning horn with 50W/100W output, 105 dB sound pressure, TTS broadcasting, wireless communication, and 200–400 m effective range. Ideal for public alert networks and emergency seismic warning systems.
OVERVIEW
Description
The GZ-EWH-050 / GZ-EWH-100 Earthquake Warning Horn is a rugged outdoor-grade early warning loudspeaker system. It is designed to provide rapid public notification during seismic emergencies. Built for earthquake early-warning networks, municipal alert systems, schools, communities, and public safety centers. It combines high-powered acoustic output with intelligent communication and monitoring capabilities.
The horn supports real-time seismic alert broadcasting, local intensity announcement, and emergency countdown functions. It also allows remote configuration, TTS (Text-to-Speech) voice conversion, and whitelist-based access control. This ensures secure operation.
With rated power options of 50W or 100W and a maximum sound pressure level of 105±2 dB, it provides high sound clarity. Additionally, with an effective broadcasting range exceeding 200–400 meters, it ensures reliable alert distribution over wide outdoor areas.
Constructed from high-strength non-metallic magnetic materials and sealed to IP65 standards, the device is resistant to water, dust, and harsh environmental conditions. Integrated wireless communication (WiFi, 2G/3G/4G/5G) and a single-chip control system enable seamless connectivity with earthquake monitoring centers. It is also equipped with a high-brightness warning beacon, USB interface, and audio output options. Therefore, the GZ-EWH series provides a complete and durable emergency notification solution.
FEATURES
-
Available in 50W and 100W versions
-
High-output outdoor acoustic warning system
-
Maximum sound pressure 105±2 dB
-
Effective acoustic range 200–400 m
-
Text-to-Speech (TTS) real-time voice conversion
-
Supports early-warning intensity broadcast and countdown
-
Remote configuration and firmware upgrades
-
Wireless communication: WiFi, 2G, 3G, 4G, 5G
-
USB interface + audio output port
-
High-brightness red warning beacon (>900 LM)
-
IP65 outdoor protection rating
-
Non-metallic magnetic material for high durability
-
Cylindrical horn structure, 300 mm / 500 mm mouth diameter
-
Operating temperature –20°C to +50°C
-
Humidity tolerance >90% RH (no condensation)
SPECIFICATIONS
Underlying Parameters
-
Structure: Cylindrical
-
Horn mouth diameter: 300 mm / 500 mm
-
Host weight: 3.5 kg
-
Material: Non-metallic magnetic structure
Electrical / Feed System
-
Input voltage: 220V
-
Rated power: 50W / 100W
-
Impedance: 4Ω
-
Full-load operation: <100W
Acoustic Performance
-
Sensitivity: 95±2 dB
-
Effective frequency: <16 kHz
-
Maximum sound pressure: 105±2 dB
-
Effective acoustic distance: 200–400 meters
System Parameters
-
Operating system: Android, Linux, Unix
-
Control system: Single-chip embedded
-
Voice conversion: TTS
-
Communication modes: WiFi, 2G/3G/4G/5G
-
Interfaces: USB port, audio output
-
Lighting: Static luminous flux ≥ 900 LM
-
Status indicator light: Green (on/off)
Environmental
-
Temperature: –20°C to +50°C
-
Humidity: >90%, no condensation
-
Protection class: IP65
APPLICATIONS
-
National and regional earthquake early-warning networks
-
Schools, campuses, and educational institutions
-
Municipal emergency broadcasting systems
-
Industrial facilities and power stations
-
Shopping malls, communities, and public squares
-
Railway stations, subway stations, and transportation hubs
-
Government buildings and public safety centers
-
Outdoor public alerting and evacuation systems
WHAT’S INCLUDED
-
GZ-EWH-050 or GZ-EWH-100 Warning Horn (depending on model)
-
Integrated red warning beacon
-
Mounting hardware & brackets
-
Power connection cable
-
User manual & installation guide
-
Configuration and test documentation















