The 3M Noise Indicator alerts users to potentially dangerous noise levels, helping identify areas where hearing protection may need to be worn. Users simply clip the unit to a shirt or jacket - the LED light delivers a clear indication when noise levels exceed a potentially hazardous threshold. A red flashing LED indicates that noise levels are above 85dB and that hearing protection may be required. A green flashing LED indicates that noise levels are below 85dB and that hearing protection may not be necessary. The Noise Indicator's small size (2"H X 1.4"W X 0.5"D) and lightweight design make it ideal for workers in a variety of industries. The rechargeable battery operates for up to 200 hours between charges.
The intuitive design of this detector makes it easy for users to measure sound levels and determine the degree of hearing protection required. Unit computes the average sound pressure level, allowing for more accurate assessment of intermittent sound levels. This model measures sound levels from 45-130dB. The user-selectable LED alert screen provides a quick visual reference of sound levels with green, yellow and red LEDs that flash when preset noise levels have been reached. Unit measures 6.5"H X 2.4"W X 0.9"D and comes with a rechargeable lithium polymer battery, microphone windscreen and a USB cable to charge the instrument with a computer. Order a Calibrator (#31529) to calibrate and verify sound level meter operation.
This low cost and easy-to-use dosimeter is ideal for personal accumulated noise exposure measurement, workplace noise assessment and OSHA compliance surveys. Unit measure sound levels from 70-140dB and features adjustable criterion level, exchange rate and threshold level. Datalogger stores up to five dosimeter surveys. Data stored includes start/stop time, percentage dose, TWA and peak flags. Windows® compatible software can be used to control setup, retrieve stored events or analyze real time measurements. Unit measure 4.2"L X 2.5"W X 1.3"D and includes a belt clip, clip-on microphone, mini screwdriver, software, computer cables and adaptor, four AAA batteries and carrying case.
Measure sound levels from 30-130dB with an accuracy of +/- 1.5dB. Meter records readings with a date and time stamp and has data logging capability up to 20,000 records. Unit measures 10.9"H X 3"W X 2"D and comes with Windows-compatible software, cable, windscreen, tripod, 9-volt battery and hard carrying case. Order a Calibrator (#25951) to calibrate and verify sound level meter operation.
This two range meter measures ranges from 35-100dB and 65-130dB. The data hold and max hold functions allow for the display of current and highest readings. Backlit display makes for easy viewing in low-light areas. Unit measures 8.2"H X 2.1"W X 1.25"D and comes with a microphone windscreen and 9-volt battery. Order a Calibrator (#25951) to calibrate and verify sound level meter operation.
This two range meter measures ranges from 35-90dB and 75-130dB with an accuracy of +/- 1.5dB. Meter offers a built-in calibration check (94dB). Max hold function allows for the display of highest readings. Unit measures 9.5"H X 2.7"W X 1"D and comes with a hard vinyl case and 9-volt battery. Order a Calibrator (#25951) to calibrate and verify sound level meter operation.