Ground treatment device and system composed of ground treatment device and external terminal device

The invention relates to a floor treatment device (1) having a replaceable part (2), a detection device (3) for detecting actual parameters that are affected by the loss of the replaceable part (2), an evaluation device (4) for determining a degree of loss of the replaceable part (2) on the basis of the actual parameters, and a communication device (5), the communication device is used for transmitting information about the replacement requirement of the replaceable part (2) to an external terminal device (6) which is in communication connection with the ground treatment device (1). In order to advantageously improve the floor treatment device (1), it is proposed that the replaceable part (2) has a floor treatment element (7) for exerting a mechanical action on the floor to be treated, an average value of the actual parameters detected by the detection device (3) in a defined time period of at least one hour is calculated and compared with a defined reference value, and a degree of loss of the replaceable par