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peel-away window and replaceable sweatband and it meets NIOSH standards
Meets OSHA's requirement for accuracy within +-25% for 8 hrs samplings at 1 ppm and the requirement for accuracy within +-35% for 8 hrs samplings at the 0
This model is also available in non- polarized lens
Re-Usable: Just Soak In Water To Re-Activate
MSA ALTAIR Pro Portable Ammonia Monitor With Alarms @ 25/50 PPM Allegro peel-away window and replaceable sweatbandMSA ALTAIR Pro Ammonia (NH3) Gas Monitor with a rugged design is easy to use and features replaceable sensors as well as distinctive alarm system. Monitor with built in IR communication consists of easily replaceable battery and backlit LCD displays. Monitor is fast responding and features clear alarm functions to alert the wearer. Durability and simplicity is obtained by the rubberized armor housing as well as one button operation of the Monitor.