Description :
Specially designed for promotional/advertising use. Put in hypermarkets / supermarkets to promote new products. When consumers are walking around, it detects and plays out the pre-set promotional message. Can mount onto walls, put on shelf or door entrance. For warning and welcome speech. 
Please click for more details of PIR Remote Sensing Module

Size                   : 121 x 39 x 83 x mm (L x W x H)

Duration            : 10 & 20 seconds
Battery              : AA Batteries x 4 pcs (Not provided) 
Availability        : 4 weeks after order confirmation 
Contact us now : sales@vtk.com.hk