Alertz Art-Design/Cutting-Sticking/PVA-Glue Clear polythene wallets with coloured

Clear polythene wallets with coloured metal zip

Includes 14” hats

(D) Cleated rubber backing to help prevent carpet creep

Scene store and recall

Supplied with 1 fixed shelf and 4 adjustable shelves

Alertz Art-Design/Cutting-Sticking/PVA-Glue Clear polythene wallets with colouredAlertz is a highly visual, electronic resource designed to help reduce noise levels within classrooms. Also, halls, dining areas, corridors, exam settings, libraries and many other areas where noise is an issue. As noise levels increase beyond pre determined acceptable levels, the simple traffic light system will change from green (acceptable), to amber (noise level rising) to red (too noisy). Alertz can respond with lights only, lights with siren, or