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Instrument and meter
HS-EV161 Intelligent Elevator Voice Expansion Board
HS-EV160 Intelligent Elevator Voice Board
PL-50D Mobile Signal Blocker
PL-60A Mobile Signal Blocker
PW-V5 ordinary regulated power supply
PL-50A Mobile Signal Blocker
PW-V10 dedicated power adapter
PW-V30 centralized regulated power supply
PW-V20 centralized regulated power supply
NV-16HD1 High Definition Audio Recording Server
NV-08HD1 High Definition Audio Recording Server
PL-80M Mobile Signal Blocker
DIY-1833 voice echo cancellation intercom module
PL-80S Mobile Signal Blocker
DIY-1813 fidelity speech acquisition module
PL-80D Mobile Signal Blocker
PL-80A Mobile Signal Blocker
PL-60D Mobile Signal Blocker
PL-10BL Mobile Signal Blocker
Successful operation!