The project team visited Isaneswar Basti in Bhubaneswar, Odisha to pilot the pre-intervention survey tools and use the devices for meteorological and physiological measurements on ground. During the visit, indoor and outdoor temperature and humidity readings were recorded, along with physiological measurements such as blood pressure, heart rate, and surface body temperature of family members from selected households.

Field investigators received practical training on the correct placement of sensors, including avoiding direct sunlight, ensuring proper exposure, and maintaining an approximate height of two metres for accurate readings. Different placement methods were used based on household conditions to ensure reliable data collection.

Field investigators were also guided on-site during the physiological measurements. Important protocols were explained, such as allowing participants to rest before taking readings, maintaining proper intervals between blood pressure measurements, and ensuring correct cuff placement. The pilot visit prepared the field investigators through hands-on training and field experience.