ATO One 2 SE is the standard version with submersible pump, it only needs to install the sensor and submersible pump, which can be used after power on without setting. The sensor is fixed by magnet, which is convenient for installation and adjustment. Equipped with optical level sensor, blue optical level sensor is used to monitor the water level and decide whether to replenish water, red optical level sensor is used to prevent the overflow. ATO One 2 SE has rich status indication, when the refill water overflows or overtime, when the water in the refill container is insufficient, ATO One 2 SE will have indicator light and buzzer alarm.
