Water level and indoor temperature at a glance - Clear digital display shows real-time water depth from 1 to 5 meters with a precision of ±0.05 m, plus indoor temperature for convenient monitoring. Solar powered transmitter with weather protection - Transmitter includes a built-in solar panel that charges rechargeable batteries during daylight, providing continuous operation. Rated IP65 for reliable protection against dust and water exposure. Dual power options for the receiver - Receiver can be powered by 3 AAA batteries or the included Type-C power cord. Includes 12H/24H time display, with adjustable backlight and selectable key sound. Comprehensive temperature monitoring and alerts - Track water temperature from -40C to 60C and indoor temperature from 0C to 50C with 0.1C resolution. Alarm function and low battery reminder help maintain optimal tank conditions. Use scenarios - Home utility or kitchen: monitor a water tank indoors to prevent overfill or depletion without frequent checks. - Outdoor or greenhouse reservoir: solar-powered transmitter supports continuous monitoring with IP65 protection in exposed locations. - Flexible placement: mount the receiver anywhere in the home, using battery power or Type-C, while viewing time, adjusting backlight, and relying on alerts for proactive management.