The Verifier is a special type of sound level meter which offers simplified methodology for measurement of Speech Transmission Index-Public Address (STI-PA), to ensure voice actuated fire alarms, mass communications, and PA systems are clearly heard and understood in an emergency.
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Electrical Safety For Utilities Utility maintenance personnel are exposed to hazardous voltages on a routine basis. To ensure safe work practices, personnel must understand safety regulations, electrical hazards, and the use of safe work procedures and protective equipment.