If you want a safe ATO system, the Neptune System ATK v2 uses a mixture of optical eyes and a float valve to ensure your tanks water level stays the same while preventing overfills. With the ATK v2 you do not need an Apex Controller since it can be run 100% standalone, however with the addition of an Apex Controller additional features can be unlocked and more accessories can be added to the included FMM module.
Safer Than You Can See
The Neptune Systems ATK v2 uses the robust Fluid Metering Module with re-designed optical sensors to monitor your water level. The dual sensor design allows for the ATK to have one main water level sensor and the other as a backup should the first ever get dirty. On top of the optical sensors, a mechanical float valve is integrated into the pre-assembled water level mechanism that will protect you against the super rare electronics failure. On-top of all that, IQ-Fill technology will learn and limit the run-time limits for your aquarium system, ensuring that if all else fails, the PMUPv2 never runs long enough to overfill your aquarium.
1x FMM Fluid Monitoring Module
2x Optical Water Level Sensors
1x Float Valve
1x 90° Tube Fitting
1x 4 Meters Orange RO Tubing
1x 3/8" to 1/4" Push Connect Adapter Fitting
1x 1/4" Push Connect Siphon Break
1x Set Screw for Non-Float Valve Applications