ATC-500 is a multifunctional Aquatic Controller with the optimizing design to control temperature, lighting, oxygen supplying, filtering and alarming. It could be widely used in aquarium, especially for the economic aquatic of most demanding aquarium setup in hotel, restaurant, showcase etc. It offers not only the reliable performance, but also the easy installation, operation and maintenance. Technical Parameters: ◆Resolution: 0.1 ◆Accuracy: +/-1℃ ◆Temperature measuring range: 0℃~+70℃ ◆Temperature controlling range: 0℃~+50℃ ◆Return difference range: 0℃~+15℃ ◆Alarm when exceeding temperature limit: 0℃~50℃ ◆Power supply: 220VAC－15%～220VAC＋10% ◆Relay output: heater stick: 7A/220V and 3A/220V for others