The foreman red flags the area and gives the go-ahead to proceed.
If any danger arises, such as another worker entering the area, warnings are automatically sent to the device - red flags and vibrations to alert the wearer.
The warnings can also be sent to phones as an extra layer of safety.
Aneil, Carter and Connor have designed the template for the application and researched the technologies that can be applied to make it functional.
They say developing the software is an expensive exercise that requires a refined skill - and that is where the Fieldays Innovations Tent came into play.
The boys said their concept attracted attention from people who may be able to help them take it to the next level.
"We don't want to sell the idea at this stage. We want to work with the idea and sell it when it is more developed," said Carter.
"A group of Massey University graduates expressed an interest in working with us.
"We are waiting to see if they will help us bring the product to the market."
The Fell Safe team are also aware money is needed to fund the work and hopeful someone will be inspired to invest.