Signal flashes when the filters and RO membrane are time to replace and water quality is under the setup standard. It sounds for 90 second when making pure water.
The filters and RO membrane can change time set up or TDS according to water condition and consumption. (For example: removal rate of RO membrane is 85%, when the water source is 200 PPM TDS adjust to 30 PPM.)
24-7 water quality monitoring; PPM LED display; water quality signal lights; TDS adjustment.
LCD monitor + 105344 three way tune connector. (this item is final sale) no return or exchange is accepted.
Not transformer or adapter is included, transformer is required to operate the LCD monitor , you can use 105015