temperature feeler:is used to detect the temperature and level of water in the tank, providing accurate parameter. temperature feeler is used to detect the temperature and level of water in the tank, providing accurate parameter. Main technical data 1,Dimension: 210 mm x 145mm x 40mm 2,Self power consumption: <3W 3,Measuring accuracy of temperature: ±2°C 4,Temperature range of measurement: 0~99°C ...