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TR-971 Air Flow Indicator is used to confirm that the manufacturer's mimimum design flow rate of the TR-600 is exceeded
Battery status indicator
Single or Dual button auto dial options with remote programming
Wraparound design improves the security and prevents slipping
Electronic audible and visual low air flow and low battery alarms as well as battery charge indicator /particulate filter loading status indicators and airflow indicator
3M™ PELTOR™ HY220 Hygiene Kit MT73H450A-38 TR-971 Air Flow Indicator isFor use with the following 3M Peltor Headsets: Peltor ProTac III Slim Headset (MT13H220A) Peltor ProTac III Slim Helmet Mount (MT13H220P3E) Peltor ProTac III Headset (MT13H221A) Peltor ProTac III Helmet Mount (MT13H221AP3E) Peltor Protac III Hunter Headset (MT13H222A) Peltor Protac III Shooter Headset (MT13H223A) Peltor WorkTunes Pro Headset (HRXS221A) Peltor WorkTunes Pro Helmet Mount (HRXS221P3E) Compatible with the 3M Peltor Comtac XPI Series Easy
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