Etymotic Research Personal Led Data Logging Noise Dosimeter (Er-200dw8)

Hearing loss from loud sound affects millions of people. Noise-induced hearing loss is preventable, but most people don't know how long they can listen to loud sound without risking hearing damage. A single noise exposure may not result in hearing loss, but permanent damage to the inner ear from noise adds up over time. The accumulation of too much noise day by day, year after year, is the determining factor in hearing loss risk. The ER200-DW8 provides data logging and user selectable dose level criteria and run time. NIOSH, OSHA, or user customized dose criteria can be used. User selectable run time of 16 hours, 3 days, 5 days, or 7 days can be selected. Uses 3 AAAA batteries, included.