Pat Cummins says Snicko technology in Australia is lacking consistency compared to overseas.

Australia's third Test triumph over England in Adelaide that secured the Ashes for a fifth-straight series was pockmarked by several Snicko controversies.

England, justifiably, maintain they were robbed in Australia's first innings when Alex Carey was adjudged not out after a caught-behind appeal.

Carey admitted he believed he got an edge but was reprieved when Snicko technology showed a noise spike before the ball reached his bat.

The Australians were 6-245 at time and Carey was on 72. He went on to make a vital 106 and the hosts added another 126 runs after the flashpoint.

Snicko's operators BBG Sports took responsibility for the blunder, which they attributed to human error.

England protested the Carey incident to the match referee and were returned a review that had initially been lost.

In England's first innings, wicketkeeper-batsman Jamie Smith was given out caught behind in another Snicko decision that bemused the tourists.

Snicko is deployed in Australia and New Zealand with all other cricket nations using UltraEdge technology which is considered more accurate, but also more expensive.

"The one here seems a little bit different to sometimes what you get overseas," Cummins said after Australia's 82-run win on Sunday.

"There's always a few murmurs ... you're hoping that it matches up if you're the bowling team.

"Sometimes you're kind of just making sure that it's all OK if you're batting, even if you feel like you haven't hit it.

"Yeah, it sometimes doesn't feel super-consistent. But you just crack on - whatever the umpire says."

The Snicko technology used in the Ashes is deployed and paid for by host broadcaster Fox Sports.

Australian Cricketers' Association chief Paul Marsh said during the Adelaide Test it was "nonsensical" that decision review technology rested with host broadcasters instead of cricket governing bodies.

"The players are frustrated," Marsh told AAP on Friday.

"Careers are on the line with this sort of stuff."