
Ds2503 Low Noise DC Mini Submersible Water Pump for Aquarium Circulation. Long Life Span: Over 20000 hours of operation with brushless motor technology. Low Noise Design: Operates at less than 30dB at a distance of 1 meter. IP68 Waterproof: Epoxy potting ensures high waterproof rating for submersible use. Customizable Functions: Supports 0-5V speed control, PWM, FG signal, and PV solar power. High Temperature Option: Customized versions available for temperatures up to 100 degrees Celsius. Multiple Protection: Includes polarity reverse, over-voltage, waterless, and rotor lock protection. Versatile Applications: Suitable for aquariums, fountains, humidifiers, and medical equipment. Durable Rotor: Features a permanent magnetic rotor with optional stainless steel zirconia shaft.