Please use the drop-down menu to select your preferred model. The following options are available from Aquacadabra: AutoAqua Smart ATO Micro Top-Off System AutoAqua Replacement Pump (fits all 3) AutoAqua Spare Float Switch AutoAqua Smart ATO Micro The Smart ATO Micro is a unique Auto Top Off system that monitors and automates refilling of evaporated water. It is easy to install and contains no moving parts that can fail. This ATO features integrated QST (Quick Security Technology) for real-time fail-safe protection against malfunction. Simply move the optical sensor to adjust the desired water level within your sump. Features: - Impossibly small and compact - Contactless optical water level sensor – no moving parts - QST (Quick Security Technology) for real-time fail-safe protection - Simple setup - Helps maintain stable water and salinity levels in marine aquariums - Adapts to most aquariums or sumps with walls up to 1.2 inches thick Specifications: - DC feed pump model: DP-200 - Brushless motor (30,000-hour lifespan) - Max head height: 200 cm - Flow rate: 280 L/H - Power: 4.5W at 12V DC Note: Can be connected directly to another pump or solenoid valve with power under 10W at 12V DC output Condition: New and high quality Manufacture: China Friendly Tips: - Slight measurement variations may occur due to manual measurement - Product color may vary slightly due to lighting and screen display differences Package Included: - Controller/Sensor - Power adapter - DC brushless pump (pumps up to 200 cm height, max flow 280 L/H) - 2 meters of water tubing with magnetic mount tubing holder - Unique siphon breaker