Backlight on/off function: The digital water level gauge includes a backlight that you can toggle to suit lighting conditions. Use the backlight for easy reading in dim environments, and turn it off to save power when not needed. Time function 12H/24H: The display supports either 12hour or 24hour time formats. Choose the format that fits your workflow. When powered on, the default display is 0:00 in 24hour format. Transmitter low battery reminder: The monitor provides a continuous notification when the transmitter battery is running low, helping you maintain uninterrupted monitoring. Alarm function: An alarm can be set on the monitor. Use scenarios Home water storage or rainwater collection: Monitor water level at a glance, use the backlight for nighttime readings, and set an alarm to alert you if the level drops below a threshold. Industrial or outdoor tanks in low light: Read the level clearly with the backlight, rely on the timer display in either 12H or 24H format, and receive low battery alerts to prevent monitoring gaps. Remote irrigation or aquaculture systems: Keep track of water levels and schedule alarms for critical times, with a clear 24hour display and accessible backlight for visibility in dim environments. This device emphasizes practical features for reliable monitoring, including easy readability, flexible time display, proactive battery status alerts, and alarms, suitable for various water level monitoring applications.