Fangrui Product Details Fangrui Product Details -ft005 Product Function Introduction:1. Backlight On/off Function. Time Function 12h/24h System (default Display When Powered On: 0:00 24 Hours) 2. Transmitter Low Battery Reminder. Alarm Function (default Display When Powered On: 0:00) 3. Buzzer On/off (the Buzzer Function Is Turned On Or Off Only For The Key Sound, The Alarm Mode Is Not Affected By This). Indoor Temperature C/f (default C) 4. Data Signal Indication. Water Tank Temperature C/f (default C) 5. Water Tank Water Level Display Unit: Meter/foot (power-on Default: Meter). Water Tank Liquid Level High/low Alarm Mode Alarm Sound On/off Display, Default On Alarm Duration: 120 Seconds High/low Water Level Display Water Level Depth Analog Display On 10-element Lcd Bar Graph Receiver Indoor Temperature Range: 0c~50c/-32f~122f Transmitter Water Tank Temperature Measurement Range: -40c~60c/-40f~140f Water Level Measurement Range: 1~5m Temperature Resolution: 0.1c Accuracy: 1c Water Level Resolution: 0.01m Accuracy: