Product Name: Overfill Protection Simple ATO Automatic Refill Auto Top off System Unit Customized: Customized Condition: New Feature: Eco-Friendly Decorations & Ornaments Type: None Temperature Control Products Type: None Shape of Aquariums: Square Material of Aquariums: No Requirement Lightings Type: None Size of Aquariums: Large, Mini, Middle Type: Water Level Controller Input Voltage: 90-250VAC Power Adapter: EU,Au,Us,UK Regulation Function: Auto Refill Service: OEM and ODM Hose Length: 1.8 Meters Pump Head: 1.8 Meters Max Thickness of Tank: No Requirement Warranty: 1 Year Sensor: Optical Level Sensor Advantage: Overfill safety Protection Trademark: None Transport Package: Paper Box Specification: 140mmx90mmx60mm Origin: Cn HS Code: 9032899090 Product Description DescriptionPackage:Includes ATO Controller,Pump,Power Supply,hose holder and user manual; Advantage:1.Magnetic installation 2.Double sensor protection 3.Easy to connectFunction: 1 auto refill water 2 Overfill protection.Factory Introduction