[Wide Application]:This water level alarm is suitable for water levels in home aquariums,tanks,sump water level,and other applications [Easy Installation]:Simply attach the suction cup to the inside glass of the fish tank or water tank (position can be adjusted as needed),leaving the alarm body outside [Compact]:The Water level alarm is delicately designed with a small size that will not affect the aesthetics of your aquarium or water tank [Size]: 4cmx4cmx1.5cm/1.57inx1.57inx0.59in,cord length:17cm/6.69in [Material]:The Water Leak alarm is made of quality material with strong durability,able to work stably for a long time, Weight: 0.03968320716 pounds, Manufacturer: mophrati