... flow indicator 1.DN50-DN200 2.contact capacity:DC24V/1A 3.high sensitivity and precision 4.quick delivery water flow indicator,water flow ... detector,water flow switchGrooved type:ZSJZ/G 50-200Thread type: ZSJZ ... : 2-90s6) Switch volume: AC220V, 5A; DC 24V, 3A water flow indicator