Suzhou Tewaspray is a focused component manufacturer producing vane-type and T-tap waterflow detectors, pressure switches, valve supervisory switches and pre-assembled zone control units for wet-pipe sprinkler installations, working from Weitang Town, Suzhou since 2012. Its DPS10, DPS25, DPS40 and DPS120 series pressure switches hold LPCB certificate 1905a to LPS 1226. It is a useful source where a sprinkler installation needs LPS 1226 flow-alarm devices procured in Asia.