Cranford Controls

VPR Spatial Sounder 24Vdc

Product Overview

The SA2 version is designed for applications where low current consumption relative to sound output is a consideration. An extremely low 11mA @ 100.3dB(A) is achieved.

The SA4 version has been designed for maximum sound output and achieves a healthy 105.3dB(A) making it ideal for a wide range of applications including general industrial, security and fire, making this a true multi-purpose high output sounder.

Each sounder is supplied with its own mounting base which comes with marker points for drilling industry standard M20 PG gland entries to maintain the products IP integrity. Cables can be entered from the rear or side for surface and flush wiring options.


  • 4 tones
  • Standard and high-output versions available
  • Continuously variable volume control
  • Designed to work with both conventional and two-wire (SAV-WIRE®) systems
  • IP65 specification for both SA2 and SA4 variants
  • Features base locking system as standard


Voltage range (Vdc)  8 – 35
Number of tones 4
Operating frequency (Hz) 800 – 1000
Temperature range (°C) -20 to +70
Monitoring Reverse polarity
Protection rating IP65
Boxed weight(kg)  0.20
Body colours available Red or white (ABS fire retardant plastic)


Version SA2 SA4
Sound output, typical (dBA) 100.3 105.3
Sound output, anechoic chamber (dBA) 99.5 104.6
Sound output, reverberation chamber (dBA) 116.3 120
Max. current consumption @ 24Vdc (mA) 11 36.2
Power consumption @ 24Vdc (mW) 264 869


Part Numbers

SA2 505-001 Red body, 4 tone,
SA4 505-006 Red body, 4 tone,
SA2 505-002 White body, 4 tone,
SA4 505-007 White body, 4 tone,