The Kamoer X2SR is a WiFi-controlled, peristaltic pump designed for auto water changes and auto top-offs in your aquarium. Instead of manually transferring large buckets of water on maintenance days, you can program your X2SR to replenish water at whatever time or speed you like. You can change as much or as little as you like, as often as you like, and as fast as you like (up to 900mL/min.), giving you better control over your aquariums water parameters and overall stability. The X2SR is a reliable choice, featuring high-quality PharMed tubing, a battery backup to restore function in the event of power loss, and multiple float sensors to trigger an alarm and stop water supply in the event of overflow. Features High precision stepper motor WiFi control via free mobile App Fully customizable water change and/or top off schedule Battery backup and memory settings Includes float sensors and alarms for overflow prevention Specifications Flow: 900mL per minute + Dosing Schedule: 14x per day – 1x per 99 days Max Head Pressure: 32 ft Interface: WiFi* App control via mobile device Dimensions (including pump head): 6.61L x 6.97W x 8.78H Working Environment: Temp 32-158F; Humidity 10-90% Weight: 9.05lbs (not including power supply) Power Input/Output: 100V – 240V AC / DC24V 1.9A *Requires 2.4GHz WiFi. 5GHz not supported. Whats Included 1x X2SR Unit 1x Power Adapter 50mL Plastic Measuring Cylinder 6 meters of 9.5*12.5mm green PVC tubing 3x Transparent tube manifolds 4x Float level sensors and brackets 8x Magnets 1x 24V DC submersible pump 1x Male-to-male line 1.5 meters of 8*11mm transparent PVC connecting pipe for auto top-off 1x Anti-siphon connector ( straight) 10g Grease Quick start guide Qualified certification