AutoAqua Smart Level SecuritySmart Level Security by AutoAqua prevents aquariums from overflowing or equipment from running dry. Magnetically coupled optical sensor mounts up to smooth surfaces 1/2 inch thick.A Simple Way to Secure an AquariumThe Smart Level Security by AutoAqua prevents aquariums from overflowing or equipment from running dry. The included optical sensor detects water levels precisely, and the device will sound the alarm when triggered. No moving parts to service or fail to make this unit incredibly reliable. The magnetically-coupled sensor makes installing and adjusting to the desired level quickly.Key Features:It can be used as a high-level or low-level sensorIt will shut off the equipment and give an audible and visual alarm immediately when the sensor is triggeredPlug-and-play design, no annoying programmingAvoid false alarms during power outages with the auto time delay functionSpecifications:Power Input / Output : 100-240 VAC, 10 AmpMax. Power : 1100 W for 110 VAC / 2200 W for 220 VACMax. Mounting Thickness: 1/2 inch (12.7 mm)Cable Length: 10 feet (300 cm)WARRANTYCoralVue, Inc. and AutoAqua hereby guarantee this product to be free from defects in material and workmanship for a period of:1 Year