LHTV series water level gauge television monitoring system is mainly used in thermal power plant boiler and chemical boiler drum water level monitoring, can also be applied to the environment temperature is below 80 DEG C high temperature, high radiation, high dust under harsh conditions such as production, scientific research, construction, operation and other field of fixed or movable object short-range and long-range monitoring. The system for field goal for direct monitoring, has very high reliability and safety, convenient in operation and management.