"They can be used for anything from search and rescue inside a home to search and rescue in a lost wooded area. They can be used to find hot spots inside walls, buildings," Captain Josh Cox said.
The firefighters said it is a critical piece of equipment often used in fire response.
"A lot of times smoke may be visible, but the actual fire may be in a wall, it may be in a ceiling. It may not be visible through the drywall. Through the thermal imaging, we can see where the sparks are coming from, where the fire is coming from. That way we know where to attack it," Avoca Volunteer Fire Department's administrative president David Long said.