
Dahua ARM9A4-P-W2 Wireless Alarm Multi IO Transmitter
Dahua Wireless Multi IO Transmitter – ARM9A4-P-W2
Expand Your Security System with Powerful IO Integration
The Dahua ARM9A4-P-W2 Wireless Multi IO Transmitter is an advanced interface module designed to connect multiple wired devices to your wireless alarm system. With 16 alarm inputs, 4 relay outputs, and dual auxiliary power outputs, this versatile unit is ideal for large-scale residential, commercial, or industrial security applications.
Offering flexible communication, intelligent power management, and multiple power supply options, the ARM9A4-P-W2 enables seamless integration of wired components into your Dahua wireless ecosystem.
🔧 Key Features
-
16 Alarm Inputs & 4 Relay Outputs
Easily connect a range of sensors, detectors, or control devices to your system, expanding its reach and capabilities. -
2 Auxiliary Power Outputs (24W Total)
Power external wired detectors or sirens directly from the transmitter. Includes overload and short-circuit protection for enhanced safety. -
Flexible Power Supply Options
Choose from PoE, AC power, or an optional rechargeable battery to suit your installation environment. -
Stable RF or Network Communication
Supports wireless RF or wired network connection to the Dahua alarm hub, providing installation flexibility and system stability.
📲 Ideal For:
-
Integrating wired security zones into wireless setups
-
Powering wired peripherals like detectors and sirens
-
Large-scale or mixed wired/wireless installations
📲 Compatible With:
-
Dahua Wireless Alarm Systems
-
Ideal for use with models such as the ARC3800H-FW2 Wireless Alarm Hub and other W2 series peripherals.
🔧 Professional Installation Available
Need help installing your Dahua Wireless Alarm System?
-
✅ Fixed-price alarm installations by licensed security technicians
-
✅ Free quote available – [click here to request]
-
✅ Available across Sydney Metropolitan Areas
-
✅ Discounted rates for Seven Hills Area
-
✅ Send us your house plans for tailored coverage advice.
🛒 Why Choose CTC Communications?
-
✅ Certified Dahua Reseller
-
✅ Trusted Industry Experts for Over 30 Years
-
✅ Fast Shipping Australia-Wide
-
✅ Licensed Sydney-Based Technicians Available
🔐 Upgrade your security system with the power and flexibility of the Dahua ARM9A4-P-W2—available now at CTC Communications.
Blog Resources – Learn More About Home Security
🔹Pet-Friendly Home Security Systems: What You Need to Know
🔹Common Mistakes Homeowners Make When Installing Security
🔹How to Enhance Home Security with CCTV and Intercom Integration
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Dahua Wireless Multi IO Transmitter – ARM9A4-P-W2
Expand Your Security System with Powerful IO Integration
The Dahua ARM9A4-P-W2 Wireless Multi IO Transmitter is an advanced interface module designed to connect multiple wired devices to your wireless alarm system. With 16 alarm inputs, 4 relay outputs, and dual auxiliary power outputs, this versatile unit is ideal for large-scale residential, commercial, or industrial security applications.
Offering flexible communication, intelligent power management, and multiple power supply options, the ARM9A4-P-W2 enables seamless integration of wired components into your Dahua wireless ecosystem.
🔧 Key Features
-
16 Alarm Inputs & 4 Relay Outputs
Easily connect a range of sensors, detectors, or control devices to your system, expanding its reach and capabilities. -
2 Auxiliary Power Outputs (24W Total)
Power external wired detectors or sirens directly from the transmitter. Includes overload and short-circuit protection for enhanced safety. -
Flexible Power Supply Options
Choose from PoE, AC power, or an optional rechargeable battery to suit your installation environment. -
Stable RF or Network Communication
Supports wireless RF or wired network connection to the Dahua alarm hub, providing installation flexibility and system stability.
📲 Ideal For:
-
Integrating wired security zones into wireless setups
-
Powering wired peripherals like detectors and sirens
-
Large-scale or mixed wired/wireless installations
📲 Compatible With:
-
Dahua Wireless Alarm Systems
-
Ideal for use with models such as the ARC3800H-FW2 Wireless Alarm Hub and other W2 series peripherals.
🔧 Professional Installation Available
Need help installing your Dahua Wireless Alarm System?
-
✅ Fixed-price alarm installations by licensed security technicians
-
✅ Free quote available – [click here to request]
-
✅ Available across Sydney Metropolitan Areas
-
✅ Discounted rates for Seven Hills Area
-
✅ Send us your house plans for tailored coverage advice.
🛒 Why Choose CTC Communications?
-
✅ Certified Dahua Reseller
-
✅ Trusted Industry Experts for Over 30 Years
-
✅ Fast Shipping Australia-Wide
-
✅ Licensed Sydney-Based Technicians Available
🔐 Upgrade your security system with the power and flexibility of the Dahua ARM9A4-P-W2—available now at CTC Communications.
Blog Resources – Learn More About Home Security
🔹Pet-Friendly Home Security Systems: What You Need to Know
🔹Common Mistakes Homeowners Make When Installing Security
🔹How to Enhance Home Security with CCTV and Intercom Integration






















