... filters: Frequency range adjustable from 0 to 3MHz, freely settings for filter windows of band pass, high pass, low pass ... with acoustic emission parameters.•Analog filters: Supporting various filter settings: Low pass(100kHz,400kHz,1200kHz);High pass(20kHz,100kHz ... 2A DC power supply, battery pack optional, convenient solution for difficult power supply environments.•Remote Control: Remote control by ...