One of the best devices ever,, For sale (2) new devices with factory packaging at a very reasonable price.. Device Introduction: A probe device designed to measure the water level in the tank and the water filling source to solve the problem of water depletion thanks to its alarm system, which works before the water level is depleted. It provides an ideal option for checking the water level in the tank, whether the tank is installed on the ground or the roof. It is a distinguished tool for saving and protecting against water interruption from the tank. - Specifications: - Tank water level indicator - Tank filling indicator - Low water indicator - Safe to use (low voltage 5v .1A) - Easy to install - Works by electricity or battery. - Suitable for ground and overhead tanks (Price 600 riyals for both devices). Location: Dawadmi. Shipping is at the buyer's expense.