To solve the problem of a user feeling that an excreta testing device requires a lump sum, when consumable parts are required and hence urgent expenses are required and required sum cannot be prepared for causing a period, where no determination is made in a method for allowing the user to make an order by verifying that the life time of the excreta testing device is close to the displayed end.
The excreta testing device, having a sensor determines the constituent of a user's excreta obtained by evacuation in a toilet and at the same time, has a life time regarding a usable period and the number of times, and replenishing liquid for ensuring the storage and determination accuracy of the sensor for performing the quantitative and qualitative analysis of excreta- containing constituent, such as sugar. The excreta testing device is provided with a money reception section, and a money reception detection function for detecting the reception of money from the money reception section, and starts determination by detecting the reception of money, using the receipt-of-money detection function, thus collecting funds for purchasing new consumable parts from an indefinite number of users and hence preventing required funds from lacking, when purchasing the consumable parts.
NAGATA HIDEKI
AKAGAWA HIDENOBU
TAKADA TETSUYA
KATAYAMA HISAMI
