This is a new device which is very helpful because it is a small clip that is placed at the bottom of the oesophagus at endoscopy that will leave this area automatically by being sloughed off after 5-7 days. Its advantage is that it sends our wireless signals to a box that is held within 6 feet of your child during the following 24-48 hours and gives information about acid reflux. This avoids the requirement for a tube coming out of the nostril, which can be irritating, and is very helpful for younger children who are unable to understand the need for a plastic tube to come out of the nose and also children with learning difficulties especially.