Cranford Controls

VPR Spatial Sounder – EN54 Approved

Product Overview

Alert and Evacuate tones are available via the 6-way terminal block. By using 3 wires it is possible to switch between Alert and Evacuate tones via the control panel.

Each sounder has an on board crystal oscillator so that all sounders installed on a sounder circuit will synchronise.

This product has been approved to EN 54-3 for outdoor use.

Each sounder is supplied complete with its own mounting base which comes with marker points for drilling M20 gland entries. The installation of these sounders is not recommended in (chilled) areas.

Approved to EN 54-3 at a maximum volume only.



Sound Output @ 1 metre 24Vdc 109dBa (Typical)
Current @ 24Vdc c. 50mA
Operating Frequency 500Hz – 1200Hz
Number of Tones 2
Voltage Range 20 – 35Vdc
Volume Control -25dBa
IP Rating IP33C
Temperature Range -20°C to +70°C
Weight (per unit packed) 200g

Sounders are available in red or white by adding – R (red) or W (white) to the end of the part number. Results taken from testing by Cranford Controls in their environment.

Part Numbers

505-004 VPR-DT Dutch-Tone Sounder EN 54 Approved