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Rain Harvest
Digital Water Level Indicator

The Digital Water Level Indicator is a hard-wired digital electronic device that accurately displays the water level in a rainwater tank from 0 to 100% using a radio frequency cable sensor that hangs in any open plastic or concrete tank.


-Fill level indication in 1% steps
- Status LED which shows the operation in progress
- Self calibrating routine
- Permanent supervision of sensor electronics
- Error code message display


  • Digital Display
  • Tank-mounted Sensor
  • Sensor Control Box
  • Power Supply
  • Installation Parts

With the calibration function the system is coordinated to the different tank heights. The fill level in the tank is shown in 1% steps by a 3-digit LCD-display. The sensor electronics work with 12 volts of low current and is reverse polarity protected; it is attached to the main device with a 65 foot data cable. As soon as the calibration and the assembly are completed no further setting up is necessary. The reference value for a 100% fill level remains stored in the case of a power failure.


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The display must be mounted in a dry location within 150 feet of the tank and wired to a control box mounted in the tank manway. The sensor measures tanks with up to 9 feet of water. Since the system is powered using a plug-in 24 volt transformer, an electrician is not necessary for safe installation. Due to the possibility of radio-frequency interference, this device is not recommended for use in steel tanks or tight spaces.


ORDER Digital Water Level Indicator #DWLI....$319