Published: May 2013
3M’s Noise Indicator NI-100 is a sound-level meter that alerts users to potentially dangerous industrial noise levels, helping identify areas where noise control is an issue and where hearing protection may need to be worn. It has a rechargeable battery that operates for up to 200 hours between charges.
ECmag @ECmagdotcom : Some pictures from our first two days at #Lightfair2016. More to come in our coverage of #lfi2016.
ECmag @ECmagdotcom : And there were fireworks! #sandiego #sylvania #osram #padres #petcopark #lfi2016 #lightfair… t.co/QVSANstI8D
ECmag @ECmagdotcom : Osram Sylvania hosted an event last night where they made some exciting announcements. This was… t.co/VwMVWXKFEL
ECmag @ECmagdotcom : Obligatory artistic shot of some really cool lamps at the Tech Lighting booth. #lfi2016… t.co/EFZxamuzYP
ECmag @ECmagdotcom : Shuji Nakamura's Nobel Prize for the blue LED was on display at Soraa's booth. #lfi2016… t.co/s6KgIUUiQX