Ideal when water enters or reaches a certain level (e.g. if you have forgotten to turn off the tap, if the water hoses of washing machines or dishwashers burst, to monitor the water level in the aquarium, cellar, rainwater tank etc.). So you can intervene quickly and avoid damage! The device is characterised by its flexible application possibilities: 1) LED display for the liquid level: LOW, MIDDLE, HIGH. 2) Controller: A relay keeps the level between the LOW and HIGH marks. 3) Alarm: If the sensor detects too high or too low a level (adjustable), the relay will activate an alarm signal or other warning device. Technical data • Power supply: 12 - 14 VAC or 16 - 18 VDC/100 mA • Relay output: 240 V/3 A max. Dimensions: • Control board: 104 x 60 mm • Sensor board: 104 x 25 mm https://elecena.pl/product/15674799/wsha2639-kit-fill-level-indicator 2019-05-14 https://elecena.pl/product/15674799/wsha2639-kit-fill-level-indicator 2021-05-13 https://elecena.pl/product/15674799/wsha2639-kit-fill-level-indicator 2022-12-03 https://elecena.pl/product/15674799/wsha2639-kit-fill-level-indicator 2026-04-02