A biometric data collection device for a toilet includes a first compartment, a second compartment, and a bridge. The first compartment includes a first circuit board. The second compartment includes a second circuit board. The bridge is coupled to the first compartment and the second compartment and is configured to be supported by a rim of the toilet so that the first compartment is inside of a bowl of the toilet and the second compartment is outside of the bowl of the toilet. The bridge is changeable in length to fit different widths of the rim.