... .Favorable price 2.RF modules,wireless remote controller 3.Dimensions:55*38*22mm 4.Operating voltage ... .Multiplicity RF module ,Wireless remote controller with315 / 433.92/868MHz,wireless ac remote controller SpecificationPictureModelSpecification CDT-2L1) Operating voltage ... , GSM Power Alarm, Video Monitoring system, Wireless Remote controller, RF Transmitter/Receiver module, Smoke/Gas/PIR Motion/Door ...