1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Risco RWS42086800B Internal Siren. This wireless, bi-directional siren is designed to provide a loud audible alarm within an indoor environment, enhancing the security of your premises. Please read this manual thoroughly before attempting any installation or operation.
2. Safety Information
Always adhere to the following safety guidelines to ensure proper operation and prevent damage or injury:
- Ensure the siren is installed by qualified personnel in accordance with local electrical codes and regulations.
- Do not expose the device to moisture, extreme temperatures, or direct sunlight.
- Disconnect power before performing any maintenance or installation procedures.
- The siren produces a loud sound (105 dB). Avoid prolonged exposure to prevent hearing damage.
- Keep out of reach of children.
3. Product Overview
The Risco RWS42086800B is a compact, wireless internal siren. Its bi-directional communication ensures reliable signal transmission and reception with compatible Risco security systems.

Figure 1: Front view of the Risco RWS42086800B Internal Siren. The image shows a circular, off-white device designed for indoor use, featuring a subtle central circular indentation that houses the speaker. The overall design is discreet and blends well with typical indoor environments.
4. Setup
4.1 Unpacking
Carefully remove the siren from its packaging. Verify that all components are present and undamaged. Retain the packaging for future transport or storage.
4.2 Battery Installation
The RWS42086800B siren does not include batteries. You will need to purchase the appropriate batteries separately. Refer to the specifications section for battery type and quantity. Open the battery compartment, insert the batteries observing correct polarity, and close the compartment securely.
4.3 Pairing with Control Panel
To integrate the siren into your security system, it must be paired with a compatible Risco control panel. Follow the specific pairing instructions provided in your Risco control panel's user manual. Typically, this involves putting the control panel into 'learn' mode and activating the siren's pairing function (e.g., by pressing a tamper switch or specific button).
4.4 Mounting Location
Choose a suitable indoor location for mounting the siren. Consider the following:
- Central Location: For optimal sound distribution throughout the protected area.
- Accessibility: Easy access for maintenance, but difficult for intruders to tamper with.
- Environmental Factors: Avoid areas with high humidity, direct heat sources, or obstructions that could block sound.
4.5 Mounting the Siren
Use the provided mounting hardware (screws, wall plugs) to securely attach the siren to a wall or ceiling. Ensure the mounting surface is stable and can support the device's weight. Do not overtighten screws.
5. Operating
Once successfully paired with your Risco control panel, the RWS42086800B siren operates automatically in conjunction with your security system.
- Alarm Activation: When the security system detects an intrusion (e.g., via a sensor), the control panel will trigger the siren to emit a loud alarm sound.
- Alarm Duration: The siren will sound for a pre-programmed duration, typically 300 seconds (5 minutes), or until the alarm is disarmed from the control panel.
- Bi-directional Communication: The siren communicates its status (e.g., battery level, tamper status) back to the control panel, allowing for remote monitoring and diagnostics.
6. Maintenance
6.1 Cleaning
Clean the exterior of the siren periodically with a soft, dry cloth. Do not use abrasive cleaners, solvents, or excessive moisture, as these can damage the device.
6.2 Battery Replacement
The control panel will typically indicate a low battery condition for the siren. When this occurs, replace the batteries promptly to ensure continuous operation. Refer to section 4.2 for battery installation instructions. Dispose of old batteries according to local regulations.
6.3 Functionality Test
It is recommended to periodically test the siren's functionality. Consult your Risco control panel manual for instructions on how to perform a system test that includes siren activation.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Siren does not sound during alarm. | Low or dead batteries. Not properly paired with control panel. Tamper switch not engaged. | Replace batteries. Re-pair the siren with the control panel. Ensure the siren is securely mounted and the tamper switch is pressed. |
| Siren sounds intermittently or weakly. | Low batteries. Interference. | Replace batteries. Check for sources of radio interference near the siren or control panel. |
| Control panel shows siren fault. | Low battery. Communication loss. Tamper activated. | Check/replace batteries. Verify siren is within range of control panel. Ensure siren is securely mounted. |
If the problem persists after attempting these solutions, contact Risco technical support or your installer.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | RWS42086800B |
| Sound Level | 105 dB |
| Alarm Duration | Up to 300 seconds (5 minutes) |
| Communication | Wireless, Bi-directional |
| Batteries Included | No |
| UPC | 879196002484 |
9. Warranty and Support
9.1 Warranty Information
Risco products are covered by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Risco website. Keep your proof of purchase for warranty claims.
9.2 Technical Support
For technical assistance, troubleshooting beyond this manual, or product inquiries, please contact your authorized Risco dealer or visit the Risco support portal. Contact information can typically be found on the Risco official website or in your product documentation.
Risco Official Website: www.riscogroup.com





