1.Work voltage:Double: 15 V AC, single: 5 V AC 2.Standar  Frequency:50Hz                          
3.Detection Range Each Side:70-90 cm
4.Alarm Way:Acoustic and light                 
5.Temperature:-15 - 60 Celsius degree
6.Size：145*45*4cm
7.Detection height:5-1155cm   
8.Packing Details: 155*50*10cm  
9.G.W: 43kg/2 pcs