1.Ultrasonic water meter for water\liquid level 2.Ac or Dc power supply optional 3.Apply to all kinds of medium ... trough, pool, well, Drains, measuring boxes, granaries, silo, etc.Specifications1.Power supply: DC24V(±10%),0.1A ; AC220V (±20%), 0.05A2.Pricision ... and control (material level/liquid level)8. Temperature range: -40°C~ +75°C9. Protection grade: IP6710.Shell material: ABS11.Pressure range ...