Myles Hill would have been four years old on Aug. 22, 2017, but he died a few weeks before his birthday. A day care worker was arrested and charged with leaving him in a hot van at Little Miracles Academy in Orlando.

"I think this is a major step, because a situation like this right here, if you get that button installed, most definitely. I don't care how much it costs," said Myles Hill's grandfather Corey Esters.

Those sentiments are echoed by state lawmakers, who believe the "Child Safety Alarm Act" will save lives.

"If an alarm that cost between $100 and $500 -- I don't care what it costs, the facility needs to figure out a way of either trying to get it. There are grants, there's all kind of ways," said State Rep. Amy Mercado, a Democrat who represents District 48 in Orlando.

"Parents will donate. I promise you there will be parents that will say, 'I'll sign up. I'll sign up first because I want to know that my child is safe,'" Mercado contiuned.

The alarm would make sure the driver inspects for children before exiting the vehicle.

Senate Bill 486 and House Bill 305 would require the Department of Children and Families to adopt the alarm system as a minimum safety requirement.

That would apply to child care facilities and large family child care homes, a reassurance state lawmakers believe parents deserve.

"To save a child's life. That's priceless. So I think this is a major, major step to solving that problem," Esters said.

Lawmakers officially filed the bill last week but they're not expected take it up until next session, which begins next year in Tallahassee.