POA102-Ex Audio Details Technical Specifications Atex Intrinsically Safe Helmet Microphone with AttachmentComplying with requirements for instrinsic safety, this microphone with helmet attachment enables easy and safe operation whilst working in challenging environments.Find a dealerHighlightsFunctionsTechnical SpecificationsMicrophone sensitivity -42dB ±3dB @1KHz, PTT cycle ≥100000, speaker sensitivity 75dB ±2dB @1KHz, impedance 32Ω ±15% @1KHz, rated power 200mW, maximum power 500mWRelated Products PD792i-Ex