VESDA VSP-002 SF 23/01 The module can normally open

The module can normally open contact fire alarm and supervisory devices or either normally open or normally closed security devices

this accessory ensures that fire detection devices remain secure

— ANN-S/PG Serial/Parallel Printer Interface Module

but take advantage of the modular flexibility and easy installation that characterize all UIO modules

VESDA VSP-002 SF 23/01 The module can normally openThe VESDA VLP detector is the central element of the VESDA ASD product range. Using unique detection principles, the VLP has an alarm sensitivity range of 0. 005% 20% obscuration m (0. 0015%6. 25% obscuration ft). The VLP is classed as a Very Early Warning Smoke Detector, which means that it detects fire at the earliest possible stage and reliably measures very low to extremely high concentrations of smoke.