Two types of alarms – one audible and one visual – alert user to either a low battery or low flow, such a when a particle filter is fully loaded. LED lights on the battery indicate its charge status on and off the charger.
The 3M Versaflo TR-307N+ PAPR assembly includes a TR-302N+ PAPR unit, TR-371+ filter cover, TR-327 easy clean belt, TR-332 battery, TR-341N battery charger kit, TR-3712N HE filter and a TR-3600 Pre-Filter.

Dynabrade 48335 .4 hp 7 Degree Offset Die Grinder, Rear Exhaust, 25,000 RPM, 1/4" Collet
Dynabrade 56195 5" Dia. Non-Vacuum Disc Pad, Hook-Face, Short Nap
Dynabrade 92149 1/2" W x 18" L 60 Grit Ceramic DynaCut Scalloped Edge Belt, 50/pack
Dynabrade 43493 Diffuser, F.E., Ext Die Grinder
Dynabrade 01024 O-Ring
Dynabrade 78305 1-1/2" Dia. x 1" W x 1/4" Shank, 80 Grit, A/O DynaCut Flap Wheel, 10/pack 
