Step into the wireless era with the NESS RK4 Wireless Keyfob & Radio Interface Kit, designed to seamlessly add wireless control and detection capabilities to Ness D8x/D16x control panels. Ideal for both new and retrofit installations, this complete kit includes the high-performance 100-200 Radio Interface and two RK4B 4-button radio keys, offering secure and intuitive remote control for your alarm system.

Product Description
The NESS RK4 Radio Interface Kit brings enhanced convenience and flexibility to your Ness D8x or D16x alarm system. It includes one Ness 100-200 Radio Interface Receiver, which connects via a 4-wire data cable to the control panel, and two RK4B waterproof radio keys, offering wireless arm/disarm, panic, and auxiliary functions.
The RK4B remote is compact, durable, and fully waterproof—ideal for keychains, bags, or use in outdoor environments. Its 56-bit encrypted transmission ensures secure communication with the receiver, and the kit also enables support for wireless detectors, giving your system full wireless capability.
What’s Included in the Box
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1 × Ness 100-200 Radio Interface (304MHz)
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2 × Ness RK4B 4-button Radio Keys (waterproof)
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1 × 4-wire plug-and-play loom for panel connection
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Installation and user guide
Main Features
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Enables wireless arming/disarming/panic/auxiliary functions
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Adds wireless detection capability to Ness D8x/D16x control panels
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RK4B keyfobs feature 4 color-coded buttons
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Compact and fully sealed waterproof design
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Long-life lithium battery (up to 10 years)
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56-bit encrypted transmission for secure operation
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4-wire serial connection via included interface
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Receiver supports all Ness one-way radio transmitters
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Low battery transmission alerts compatible panels
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Ideal for residential, commercial, and mobile use cases
Detailed Specifications
Radio Interface (100-200):
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Frequency: 304MHz
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Power Supply: 12V DC (via panel)
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Outputs: Serial data to D8x/D16x panel (cable supplied)
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Panel Compatibility: Ness D8x/D16x (Rev 4.0 and later)
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Transmitter Compatibility: All Ness one-way radio transmitters
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Dimensions: 78mm (H) × 73mm (W) × 27mm (D)
RK4B Radio Keys:
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Dimensions: 32mm (W) × 58mm (H) × 13mm (D)
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Battery: Long-life lithium (up to 10 years, typical use)
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Buttons: 4 (ARM, DISARM, PANIC, AUX)
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Waterproof: Yes (sealed housing)
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Transmission: 56-bit encrypted
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Low Battery Signal: Supported
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Color-Coded Button Labels
Warranty Information
The Ness RK4 Kit components are covered under Ness Corporation’s standard product warranty.
About Ness
Ness is an award-winning Australian company specializing in state-of-the-art electronic security systems. Their products are developed with precision and built to meet the rigorous demands of security professionals across Australia and New Zealand.
SKU
KIT-RK4
Practical Use Scenarios
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Remote Arm/Disarm: Easily manage your alarm system from outside the property using the RK4 keyfob.
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Panic Alert Activation: Instantly send a distress signal with the PANIC button during emergencies.
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Garage & Gate Control: Use the AUX button to wirelessly operate external devices.
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Retrofit Solutions: Add wireless functionality to legacy Ness D8x/D16x systems without panel replacement.
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Outdoor/Waterproof Applications: Ideal for rugged use environments or where waterproofing is required.
Datasheets and Resources
Excellence for the Australian and New Zealand Market
The NESS RK4 Wireless Keyfob & Radio Interface Kit is custom-built for superior performance in the ANZ market:
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100% Australian-designed and manufactured
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Complies with Australian RF regulations (304MHz)
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Sold and supported through authorized distributors across Australia and NZ
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Warranty handling managed locally by Ness Corporation
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Engineered for reliable operation in urban and rural Australian conditions
This kit is your trusted solution for modernizing Ness security systems with the convenience and flexibility of wireless control.
FAQs – NESS RK4 Wireless Keyfob & Radio Interface Kit (Part No. KIT-RK4)
Q1: What control panels are compatible with the KIT-RK4?
A1: The kit is compatible with Ness D8x/D16x panels (Rev 4.0 and later). For earlier panels (Rev 3.x), use RK3 radio keys instead.
Q2: What functions do the RK4B keyfobs (KIT-RK4) support?
A2: The four buttons allow for arming, disarming, panic, and auxiliary control of your alarm system.
Q3: Is the RK4 key waterproof?
A3: Yes. The RK4B is a fully sealed and waterproof remote, ideal for outdoor and rugged environments.
Q4: Can I expand the system to include more wireless devices?
A4: Yes. The included 100-200 radio interface supports all Ness one-way transmitters, including PIRs, reeds, and smoke detectors.
Q5: How is the KIT-RK4 powered?
A5: The 100-200 receiver is powered via a 12V DC connection from the control panel using a 4-wire plug-in loom.