Residents of Herts and Essex who enjoy a wander on the wild side are being urged to download a free app which could potentially save lives in the event of an emergency.The simple-to-use app was launched by the Essex & Herts Air Ambulance Trust (EHAAT) earlier this year and has been downloaded more than 1,000 times.It gives users instant access to a six-figure grid reference that can be used to pinpoint their location to within 100 metres.The app also has an SOS light and acts as a mini...
