10-element LCD bar graph: The gauge monitors the liquid depth of the vessel and displays it in a 10-element LCD bar graph. Transmission range up to 100 mData Storage and Alarms: The unit records the minimum/maximum level of the storage tank. High/low tank level alarm and empty tank level alarm. Setting of specific water level (high/low) or alarm in case of insufficient water level.Benefits: Transmitter unit mounted on top of the tank with ultrasonic sensor to measure water level and temperature sensor to measure temperature. Water level and depth of the tank can be seen at a glance.Ultrasonic Level Sensor: With this meter, you can determine the condition of your outdoor water tank without leaving your living room. 12/24 hour time display.EASY TO USE: You can hang the receiver unit on the wall or pull out the bracket and place this ultrasonic liquid depth on a kitchen bench, table or desk. Displays room temperature, tank temperature, water level.Clock setting:In normal display mode, long press SET button for 3 seconds to enter setting mode.12/24 HOURS: 12 hours or 24 hours will flash. Press +/MAX/MIN or -/TANK key to select 12 hours or 24 hours, press SET key to enter hour setting. Hour: Hour value flashes. Press +/MAX/MIN or -/TANK to increase or decrease the hour value. When setting the hour value, press the SET key to set the minute value.MINUTES: The minute value flashes. Press +/MAX/MIN or -/TANK to increase or decrease the minute value. When setting the minute value, press the SET key to set the temperature unit.Set temperature unit:The temperature unit blinks. Press +/MAX/MIN or -/Tank to select the temperature unit C or F. After setting the temperature unit, press SET to set the unit for the tank water level.Tank water level set unit:The tank water level unit blinks. Press +/MAX/MIN or -/Tank to select meters or feet as the tank water level unit. When the water level unit is set, press SET to exit.