... ,WELCOME TO VISIT OUR FACTORY. FEATURES:2). It goes off alarm to scare away the intruders when wireless sensor is triggered ... .zones, one partial zone.code.APPLICATIONS:Easy spot alarm for outdoor field, home, farm, business store, public plaza security ... , Railway Dept. financial Dept. Police Dept and so onSPECIFICATION 2. Siren volume:95 dB (Test distance: 300mm, Surrounding noise:≤65db)3 ...