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Your current location: Miles >> labour protection appliance >> Personal protective equipment >> Hearing protection articles >> Earmuff >>Product information
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Trade name: 3M MT1H7F2-07-50 Active Noise Reduction Explosion proof Communication Earmuff -
Article No.: CA0201031 -
Search keywords: 3m communication earmuff, noise reduction earmuff, explosion-proof communication earmuff -
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Product name: 3M MT1H7F2-07-50 active noise reduction explosion-proof communication Earmuff 
Product introduction:
·Via EEx Certification, intrinsic safety. The certification level is: Eex ib llC T4 ·The built-in active noise reduction function enables users to hear the ambient sound. Harmful impulse noise can be immediately reduced ·With voice menu and adjustment button, it can control the sound level of active noise reduction restoration, balancer, adjustable restoration time, equalizer, adjustable external input volume and external input mode ·Battery life is about one thousand Hours. Before the low power automatic shutdown, Earmuff A low battery warning signal will be issued. Automatic shutdown after no operation for two hours. Save the last settings when shutting down ·If the battery runs out of power, the fail safe function ensures communication ·Foldable headband, hanging safety hat Type, neck strap type optional explain Product model Wearing mode Weight（ G ） Explosion proof standard type MT1H 7F 2-50 Earmuff Headband three hundred and ninety Explosion proof standard type MT1H7P3E2-50 Earmuff hang safety hat type four hundred and twenty-five Explosion proof standard type MT1H7B2-50 Earmuff Neckband type three hundred and seventy-five Explosion proof standard type, J11 Connector MT1H 7F 2-07-50 Earmuff Headband four hundred Explosion proof standard type, J11 Connector MT1H7P3E 2-07-50 Earmuff hang safety hat type four hundred and thirty-five Explosion proof standard type, J11 Connector MT1H7B 2-07-50 Earmuff Neckband type three hundred and eighty-five MT1H 7F two Frequency（ Hz ） one hundred and twenty-five two hundred and fifty five hundred one thousand two thousand four thousand eight thousand Average noise reduction value (dB) thirteen point eight twenty-one point five thirty point nine thirty-six point six thirty-five point nine thirty-five point five thirty-nine standard deviation (dB) one point eight zero point nine one point three one point five five point five three point one two point three Assumed protection value (dB) twelve twenty point six twenty-nine point six thirty-five point one thirty point four thirty-four point four thirty-six point seven SNR=31dB H=32dB M=25dB L=20dB MT1H7B2 Frequency（ Hz ） one hundred and twenty-five two hundred and fifty five hundred one thousand two thousand four thousand eight thousand Average noise reduction value (dB) thirteen point eight twenty-one point five thirty point nine thirty-six point six thirty-five point nine thirty-five point five thirty-nine standard deviation (dB) one point eight zero point nine one point three one point five five point five three point one two point three Assumed protection value (dB) twelve twenty point six twenty-nine point six thirty-five point one thirty point four thirty-four point four thirty-six point seven SNR=31dB H=32dB M=29dB L=20dB MT1H7P3*2 Frequency（ Hz ） one hundred and twenty-five two hundred and fifty five hundred one thousand two thousand four thousand eight thousand Average noise reduction value (dB) fourteen twenty-two point four twenty-eight point one thirty-three point eight thirty-three point four thirty-five point four thirty-eight point seven standard deviation (dB) one point five two point seven one point seven two point three two point six two point three one point eight Assumed protection value (dB) twelve point five nineteen point seven twenty-six point four thirty-one point five thirty point eight thirty-three point one thirty-six point nine SNR=30 H= 33 M = 28 L =20
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