Product Description
The Klaxon SLM-0001 Master Blaster is a 230V motor-driven industrial siren rated to 127dB at 1m. It suits sites where audible alarm needs to be heard over machinery noise or across large premises.
Where it fits on a job
- Warehouses and factories — high ambient noise means a standard sounder gets lost; 127dB carries across open floors.
- Plant rooms and high-risk industrial sites — continuous rating supports demanding, always-on installations.
- Internal or external mounting — the -30°C to +45°C range covers unheated stores, yards, and exposed external walls.
- Retail or warehouse blocks needing a supplementary sounder alongside an existing intruder alarm panel.
Integration
Activation is via a 12V DC trigger relay, wiring into standard intruder alarm control panels. The unit is pre-wired with a 1m cable for straightforward first-fix connection, and a separate surface mounting bracket is supplied to simplify positioning during install.
Key specs
- Sound output: up to 127dB at 1m
- Power: 230V AC, motor-driven
- Trigger: 12V DC relay
- Rating: continuous, indoor/outdoor
- Operating temperature: -30°C to +45°C
- Cable: pre-wired, 1m
- Mounting: surface bracket included
Specify this where a mains-powered, high-output sounder is needed rather than a battery-backed low-voltage bell — check the existing panel's relay output matches the 12V DC trigger before ordering.
Specifications
- Voltage
- 230V
- Colour
- Yellow
Frequently Asked Questions
What power supply does the Master Blaster need?
It runs from a 230V AC mains supply, being a motor-driven siren rather than a low-voltage bell.
How is the siren activated?
Via a 12V DC trigger relay, which allows it to be wired into standard intruder alarm control panels and security signalling systems.
Can it be used outdoors?
Yes, it's suitable for internal or external alarm signalling and is rated for operation from -30°C to +45°C.
Does it come with a mounting bracket?
Yes, a separate surface mounting bracket is supplied, and the unit is pre-wired with a 1m cable for connection.











