PURPOSE: A manhole cover type sensor node apparatus is provided to receive flow data from the outside of a flowmeter room using a wireless terminal. CONSTITUTION: A first antenna unit(230) locates on one surface of a manhole cover. A second antenna unit(250) locates on other surface of the manhole cover. A node unit(270) combines with the manhole cover. The node unit controls the transmission and reception of data using a second antenna unit and a first antenna unit. A control unit controls the transmission and reception of the data by connecting to a first communication module and a second communication module.
