System Sensor HWL-LF L-Series Indoor 2-Wire Selectable Output Low Frequency Sounder, Wall Mount, No Marking, White 32246672 Outside Diameter 3 1/8"

Outside Diameter 3 1/8"

Fire Sprinkler Head Guard

Adjustment Pressure Range:  10-200 PSI

and other surfaces using depth-gauge teeth (clearly printed in microns)

energy efficient ultra bright white LEDs

System Sensor HWL-LF L-Series Indoor 2-Wire Selectable Output Low Frequency Sounder, Wall Mount, No Marking, White 32246672 Outside Diameter 3 1/8"System Sensor HWL LF L Series Indoor 2 Wire Selectable Output Low Frequency Sounder, Wall Mount, No Marking, White The L Series offers the most versatile and easy to use line of low frequency sounder and low frequency sounder strobes in the industry. With white and red plastic housings, listed for wall and ceiling mounting, L Series Low Frequency can meet virtually any application requirement. The low frequency sounder and low frequency sounder