... medium 4CE.UL.RoHS Ultrasonic water level meter for water\liquid level measurementUltrasonic level meter working principle: the probe launch ... as: storage tank, materials trough, pool, well, Drains, measuring boxes, granaries, silo, etc.Specifications1.Power supply: DC24V(±10%),0 ... MODBUS7. Relay output:Floor\Highest alarm and control (material level/liquid level)8. Temperature range: -40°C~ +75°C9. ...