- Backlight On/Off: The water level meter includes a backlight that can be easily switched on or off as needed. - Time function 12h/24h: Supports both 12-hour and 24-hour time formats; in 24-hour mode the standard display is 0:00. - Low battery reminder: The transmitter provides a low battery alert, allowing timely replacement of batteries. - Alarm function: Includes an alarm feature with 0:00 display when active, delivering timely reminders as required. Use scenarios: - Monitor water levels in home or office tanks, sump basins, or aquariums, with the backlight aiding readability in low light. - Manage irrigation, greenhouse, or hydroponic systems where accurate time display and reminders help schedule checks and maintenance. - Operate in workshop or industrial environments where reliable alerts and time formats support monitoring and alerting for ongoing processes.