Upgrade your existing wired alarm system with the NESS SCR+ Flexible Standalone Radio Receiver, a high-performance wireless solution that brings radio functionality to virtually any control panel. Operating on the secure 304MHz frequency and compatible with all Ness one-way radio transmitters, the SCR+ is the ideal retrofit solution for adding wireless sensors, panic buttons, or remote arming/disarming capabilities to traditional alarm systems.

Product Description

The Ness SCR+ is a standalone one-way radio receiver designed to extend wireless functionality to any standard alarm system. Supporting up to four Ness radio transmitters—including radio keys, PIRs, smoke detectors, reed switches, and pendants—the SCR+ makes it easy to integrate wireless control without replacing your existing system.

Perfect for panic alarms, arming/disarming, or low-voltage relay switching applications (like garage doors), the SCR+ provides both a relay output and four open-collector outputs for flexible integration. It also features an “Inhibit” input that allows the receiver to recognize the current arm/disarm state of the connected panel—ensuring accurate wireless control.

What’s Included in the Box

• 1 × Ness SCR+ Standalone Receiver (304MHz)

• 1 × Antenna wire (pre-installed)

• 1 × User & Installation Manual

• Mounting screws and accessories

Main Features

• Works with virtually any alarm system

• Supports up to 4 one-way radio transmitters

• Compatible with Ness Radio Keys, PIRs, Reed Switches, and Smoke Detectors

• Receives ARM/DISARM, PANIC, AUX, LOW BATTERY, and ALARM signals

• 1 x Relay output with selectable toggle or pulse mode

• 4 x Open Collector outputs for Panic/Tamper, Alarm, AUX, and Low Battery

• Inhibit input recognizes system arm/disarm state

• Ideal for garage door control, panic buttons, and low-voltage relay applications

• Quick “Learn Mode” programming for transmitter pairing

• Operates on secure 304MHz frequency

Detailed Specifications

• Part Number: SCRPLUS

• Radio Frequency: 304MHz

• Device Support: Up to 4 Ness one-way radio devices

• Relay Output: 1 × Selectable toggle or pulse

• Outputs: 4 × Open Collector (Panic/Tamper, Alarm, AUX, Low Battery)

• Inputs: 1 × Inhibit (Armed/Disarmed recognition)

• Programming: Learn Mode for quick transmitter pairing

• Power Requirements: 12V DC (typically supplied by host alarm system)

• Dimensions: 92mm (W) × 66mm (H) × 28mm (D)

Warranty Information

The Ness SCR+ receiver is covered under Ness Corporation’s standard warranty.

About Ness 

Ness is a proud Australian manufacturer of high-quality security and automation systems. Trusted by installers nationwide, Ness products offer dependable performance, advanced features, and seamless integration with both legacy and modern installations.

SKU

SCRPLUS

Practical Use Scenarios

• Retrofitting Wired Alarm Systems: Add wireless sensors and radio keys to legacy systems without replacing existing control panels.

• Panic Button Integration: Add wireless panic functionality for homes, businesses, or aged care facilities.

• Garage Door Control: Use a Ness radio key to wirelessly operate a garage door via the SCR+ relay.

• Low-Voltage Applications: Trigger lights, sirens, or alerts using wireless transmitters connected to open-collector outputs.

Datasheets and Resources

Excellence for the Australian and New Zealand Market

The NESS SCR+ Standalone Radio Receiver is engineered with the ANZ market in mind:

• Manufactured in Australia to meet stringent local quality and electrical standards

• Operates on 304MHz, fully compliant with Australian wireless communication regulations

• Supported by authorized Ness distributors and service providers

• Backed by local warranty and tech support

• Perfect for residential, commercial, and light industrial applications in both urban and regional areas

Trust Ness to deliver a secure and seamless upgrade path for your alarm system.

FAQs – NESS SCR+ Radio Receiver (Part No. SCRPLUS)

Q1: What alarm systems are compatible with the NESS SCR+ (SCRPLUS)?
A1: The SCR+ is designed to work with virtually any alarm system that supports zone inputs and 12V DC power.

Q2: How many devices can the SCR+ Receiver (SCRPLUS) support?
A2: It supports up to four individual Ness one-way radio transmitters.

Q3: What output options are available on the NESS SCR+ (SCRPLUS)?
A3: The unit includes 1 relay output (selectable toggle/pulse) and 4 open collector outputs for Panic, Alarm, AUX, and Low Battery.

Q4: What is the function of the Inhibit input on the NESS SCR+ (SCRPLUS)?
A4: The Inhibit input allows the receiver to recognize the armed/disarmed state of the connected alarm panel, ensuring appropriate relay behavior.

Q5: Can the SCR+ (SCRPLUS) be used to control devices like garage doors?
A5: Yes. The relay output makes it ideal for remote control applications, such as operating a garage door using a Ness radio key.