The HHR WeightScale app is used together with BioControl's HHR5000 handheld RFID reader for animal tags and Bluetooth weighing devices from BioControl. The app connects via Bluetooth to the handheld RFID reader HHR5000 and the electronical unit of the weighing device. Weighing lists for the animals with the animal's electronical ID and weight are created and can be sent to databases. Taration and calibration of the weighing device is controlled bt thr HHR Weightscale app.