Primary Functions
The HGAT178 series is a specialized outdoor explosion-proof two-way radio broadcasting product developed for industrial user needs. It employs standard IP/RTP/RTSP protocols for voice transmission, offering seamless compatibility with all current mainstream SIP-based IP PBX/softswitch/IMS platforms, facilitating quick deployment for users.
The HGAT178 series casing is made of high-strength stainless steel, paired with a cast iron base, offering impact resistance up to IK10 standards. The housing features a waterproof and dustproof design, meeting the IP67 standard. It is secured with tamper-proof hexagonal screws, ensuring a robust structure that effectively protects against rain, water jets, floating dust, and reduces damage from intentional hard object impacts. It is a reliable explosion-proof product for users.
The HGAT178 series employs advanced DSP noise reduction algorithms and omni-directional pickup technology. It effectively eliminates background noise during calls while optimizing the pickup distance, ensuring high-quality voice communication at all times, providing customers with an excellent experience.
Key Features
2 SIP Lines
SupportPOE Power, Fiber Optic Connectivity
Full-duplex hands-free calling(HF)
Supports scheduled broadcasts, background music broadcasts, manual broadcasts, and alarm broadcasts
Numeric keypad(Dial or Password Input) (For i21T Only)
SmartDSS Key (Speed Dial Key, Push-to-Talk Key, etc.)
Wall-mounted installation
Built-in environmental noise reduction feature
Omni-directional microphone
Integrated indoor door opening interface
Built-in3 relays
Supports external power supply
Three-in-one feature: Access Control, Intercom, and Broadcast Functions
Industry Certifications:MA, IP66, Ik10, CE/FCC
Product Features
1. Built-in dynamic noise reduction for high-quality voice communication
2. Waterproof and dustproof design with IP67 rating
3. Constructed with stainless steel panels, the structure is robust and can withstand destruction up to IK10 standard.
4. 16-digit keypad, 1 emergency call button
5. Built-in dual 16W high-power waterproof speakers
6. Integrated alarm control, intercom, and IP broadcasting functionalities
7. Explosion Proof Grade: Ex ib I Mb (II T6)
Product Specifications
Button:16 keys
3 status indicator lights
1 Emergency Call Button
12 standard numeric keys (only i21T)
1 hands-free, 4 DSS keys (speed-dial keys)
RJ45 Network Interface x2: Network x1 (Supports 802.3af Class 1 POE), PC x1 (Network Bridging Mode)
PoE: 802.3af (Class 0 - 12.95W) 48V/380mA
Fiber optic interface:FC single-mode, quantity 2 pieces
Network Interface:3, RJ45 SIP 2.0
Active Output Switching: 12V/500mA DC
Audio Amplifier:30~100W
Speaker Power: Dual16W
Ethernet cableCat 5e or better
Power Supply:AC65~265V
Backup Battery:>= 10 hours
Shell MaterialStainless Steel 304
Ingress Protection (IP) Rating: IP67
Operating Temperature:-40~70℃
Storage Temperature:-40~70℃
Relative Humidity: 10~90%
Equipment dimensions: 430 x 225 x 136mm (W x H x L)
Packaging Weight: 4.2 KG (i21T)






















































































