To provide a terminal device that is surely confirmed about whether it is in a normal monitoring state or not by making a displaying means blinking in a fixed cycle without being changed dye to the number of connections of the terminal device.

This device is provided with an address part 22 storing a self- address, a receiving part 24 receiving a signal from a fire receiver 1, an address comparing part 23b which compares the address of a signal received by the receiving part with the self-address stored in the address part, a CPU23 which discriminates the number of addresses called from a signal received by the receiving part and selects a counting value on the basis of the number of addresses and a blinking part 26 which counts the number of address coinciding times by the address comparing part and also makes a LED27 blink when the number coincides with the counting value by the CPU.