Water Flow Detecto 

UL / FM Waterflow Detector 

The Weflo UL / FM Waterflow Detector is a Vane Type design used in fire protection piping systems.  The Figure 6001 is designed for both indoor and outdoor use, with a temperature range of 0° C to 60° C.   The Weflo Figure 6001 and Figure 6001T offer the ultimate in reliable performance.  UL / ULC Listed / FM Approved