Improved electronic design and the use of a new, custom designed piezoelectric transducer have enabled current consumption to be reduced to as little as 6mA at 24Vdc. There is a local volume switch on each unit to allow individual sounders to be increased as necessary to suit every application.

The 32-tone version has all the major worldwide tones including AFNOR, DIN and NEN spec tones. With a wide operating frequency range of 440Hz to 2900Hz, the installer has maximum flexibility. The tone list matches the popular VTG and VTB spatial sounders allowing a uniform sound across the installation.

The standard 24V units operate from 18 - 30Vdc. Standard on all VSO products is a second stage alarm allowing alert and evacuate signals to be switched via the CIE. If the unit is not being used in conjunction with a detector, a lockable cover plate can be fitted to convert the unit into a stand-alone wall or ceiling mounted sounder.

Standard Colour Available: 507-001 Standard White
Further colour matches are obtainable on request as a non approved product.
Red and White Cover Plates also available.