【Multi-Functional Display】Features a 4.3-inch screen with backlight on/off function, 12/24-hour time display, and indoor/tank temperature in ℃/℉. 【Precise Water Level Monitoring】Measures water levels from 1 to 5 meters with 0.01m resolution and ±0.05m accuracy, displayed on a 10-element LCD bar graph. 【Customizable Alarms】Set high/low water level alarms with 120-second duration and optional alarm sound, ensuring timely notifications. 【Wireless Transmission】Transmits data up to 100 meters in open areas, ideal for remote monitoring of water tanks. 【Durable Design】Transmitter features IP65 protection, effectively safeguarding against water splashes from any direction. 【Versatile Functionality】Includes low battery reminder, alarm clock, and signal strength indicator for comprehensive monitoring. Specifications: Screen Size: 4.3 inches Water Level Measurement Range: 1-5 meters Water Level Resolution: 0.01m Water Level Accuracy: ±0.05m Indoor Temperature Range: 0℃ to 50℃ (-32℉ to 122℉) Tank Temperature Range: -40℃ to 60℃ (-40℉ to 140℉) Temperature Resolution: 0.1℃ Temperature Accuracy: ±1℃ Wireless Transmission Range: Up to 100 meters in open areas Transmitter Protection Rating: IP65 Alarm Duration: 120 seconds Display Units: Meters/Feet for water level, ℃/℉ for temperature Additional Features: Backlight, Time display (12/24h), Alarm clock, Low battery reminder