Specifications include, but are not limited to:The Department of Consumer and Business Services, Division of Occupational Safety and Health Administration (Agency) is seeking quotes for the purchase and delivery of eight (8) 3M Sound Detector SD-200 to accurately measure workplace noise levels or Agency approved equal. Specifications: Microphone must be omnidirectional; Class/Type 2; ½” diameter; electret condenser Must have a linearity range from 45 to 130 dB (Dynamic Range) Weighting options must include A and C Time response options must include fast and slow Exchange rate options must be 3 dB and 5 dB Unit must have capability to integrate the average sound pressure level Must have Optime Alert System in order to select appropriate level of hearing protection. Instrument must display Sound Pressure Level, Average value (LEQ/LAVG), LED Alert (with hearing protection icon), Maximum value (MAX), Minimum value (MIN), run-time, overload (OL), and under-range (UR) Display digits must be ¾” (2 cm) with 0.1 dB resolution & 0.5 sec. update rate Must have easily accessible controls for switching between weighting options and time response. Must use and come with a rechargeable lithium polymer battery and have a run time up to 50+ hours Must have a low battery indicator Must include windscreen
