Dorgard Automatic Fire Door Hold

Dorgard Automatic Firedoor Hold. Battery powered and acoustically operated, Dorgard provides a self contained, easy to install means of keeping a firedoor open that will release automatically should the fire alarm sound.,Batteries and fixings included. Compliance: CE marked ; tested to BS EN1155 Activation: >65dB for 10-15 seconds Batteries: 2 x Alkaline C cells (RS Stock No. ; 591-231 591-231 or equivalent) Battery life: 12-18months Low Battery Warning: Intermittent audible Size and weight: W. 195m x H. 205mm x D. 45mm Wt. 940g Colour: Black