... Sound wave resonator (SAW) is used for stabilizing frequency, It is applied for wireless alarms, wireless controlling devices,etc.Using ... , SMT components, SAW (sound wave resonator)Optional for encoding ICOptional for the outside colorTech Data: 1,Operating voltage: DC5 ... > 15mw 4,Operating frequency: 315,430,433 MHZ (available for customer appointment) 5,Transmitting distance: ≤1000m (open space)6 ...