Elstead Group of Commons - home to a range of at-risk wildlife including Nightjars, Dartford Warblers, Lesser-spotted Woodpeckers, Cuckoos and Stag Beetles - is owned by the Ministry of Defence (MOD) and managed for nature by Surrey Wildlife Trust (SWT).  Like most lowland heathland sites, it is at high risk from human-caused wildfires, with a history of frequent fires in the area.

That's why, from April 2026, SWT is working with Surrey Fire & Rescue Service, the Defence Infrastructure Organisation (stewards of the MOD estate) and Surrey Hills National Landscape to trial a new wildfire detection system called EmberEye. EmberEye uses discreet, battery-powered sensors installed high in trees. These detect the infrared signature of flames and quickly send an alert to land managers and emergency responders via a cloud-based dashboard.

The sensors will be placed at various locations across the Elstead Group of Commons (incorporating Elstead, Royal, Bagmoor & Guinea Commons) and will be in place for 18 months under the current trail. Visitors to the sites may notice small sensor units attached high up in trees. The sensors do not record images or sound, do not track individuals, and only activate if a fire is detected.

SWT's Head of Nature-based Solutions, Ben Habgood, says:

"Heathland habitats are a rare and precious resource but as the climate warms, wildfires pose an increasing risk that we must work together to contain.  This compels us to use the best and most cost-efficient solutions that technology can offer. Early detection means faster response, less damage to habitats, better protection for wildlife, and improved safety for people."  

More widely, everyone can do their bit to protect all heathland sites against the risk of fire. Please never light fires or barbecues, please dispose of cigarettes and all litter responsibly, and do report any signs of fire immediately by calling 999.