The In-The-Bag (ITB) Sensors will continuously collect temperature and humidity readings from inside individual grain bags undergoing storage. They were designed (in consultation with Prof Paulsen) for university testing and monitoring of SHF grain on remote farms during interventions. They communicate wirelessly through Bluetooth technology, which does not require internet access (usually not available in remote villages or on farms). These sensors provide continous condition monitoring without the need for opening or sampling grain bags or traveling to remote locations.