Kamoer ATO One SE2 V2

Kamoer ATO One SE2 V2 – Smart Automatic Top-Off System

The Kamoer ATO One SE2 V2 is an automatic top-off system designed to maintain a stable water level in marine and reef aquariums. It automatically detects evaporation and replenishes freshwater when the water level drops.

The system uses optical water-level sensing together with a dedicated anti-overflow sensor, helping maintain stable salinity while providing protection against overfilling. The SE version includes a submersible refill pump, making it suitable for use with a separate freshwater reservoir.

Key Features

• Automatic water top-off system
• 2 optical water-level sensors
• Blue sensor for normal water-level detection
• Red sensor for anti-overflow protection
• Anti-dry-run submersible pump
• Magnetic sensor mounting
• Audible alarm and LED status indicators
• Compact controller
• Easy installation and adjustment
• Designed for use with a freshwater reservoir
• Suitable for marine, reef and freshwater aquariums

Pump Specifications

The included refill pump is designed to automatically transfer freshwater from your top-off reservoir into the aquarium.

• Pump: DC12V / 5W
• Maximum flow: approximately 500 L/H
• Maximum head height: approximately 2 m
• Tubing: 8 × 11 mm PVC
• Recommended maximum height difference: 1.5 m between freshwater reservoir and aquarium/sump.

Dual Optical Sensor Protection

The ATO One SE2 V2 uses two sensors:

🔵 Refill Sensor
Detects when the aquarium water level falls below the desired level and activates the refill pump.

🔴 Anti-Overflow Sensor
Acts as a secondary safety sensor. If the water reaches the upper sensor, the system stops the refill pump and activates an alarm.

Specifications