3M uses cookies on this site Detailed information on cookies and their use can be found in our Privacy Policy. You can customize the cookie-related settings at any time by clicking on Cookie Preferences in the footer of this page.

By clicking "Accept and Proceed" you acknowledge that you agree to the use of cookies on your computer

Accept and Proceed

Skip to Primary Navigation Skip to Site Navigation Skip to Main Content All 3M.com Site Map

3M™ Noise Indicator NI-100

3M ID  70071564713     
N1-100 Noise Indicator
N1-100 Noise Indicator
The 3M™ Noise Indicator NI-100 offers easy-to-use, durable and economical noise indicating device that alerts users when noise levels exceed 85dB.
  • One of the most affordable noise detection options available for monitoring noise levels, with a durable, small, lightweight design
  • Easy to use. Simply clip the Noise Indicator to a shirt or jacket
  • To turn on, press and hold button until double green/red light flashes
  • Rechargeable battery that operates for up to 200 hours between charges
  • Recognized as one of the most innovative, high quality and revolutionary ideas in technology by Popular Science
  • LI-Poly (flat cell) w/ 200 hours of battery life before recharge is necessary
  • Dimensions are 5.1cm (L) x 3.6cm (W) x 1.3cm (D) or 2"(L) x 1.4" (W) x .52" (D)
Need Help?

Questions? We can help

Contact Us




 Battery Life‎‎ 200 hours
 Net Weight‎‎ 17 g
 Product Type‎‎ Noise Detector
 Standards/Approvals‎‎ CE Approved
 Time Response‎‎ Slow
 Typical Application‎‎ Construction,‎ Metal Processing,‎ Food and Beverage Manufacturing,‎ Military
 Weighting‎‎ A


To View All Videos Visit the 3M Safety Video Center