Incredible distance Tracker the diabetic alert service dog sensed five-year-old's low blood sugar from

Dogs are known for an amazing sense of smell, making them incredible service dogs for conditions like diabetes.

One mum discovered just how powerful her daughter's diabetic alert service dog's nose is when he signalled that the five-year-old was experiencing low blood sugar from a huge distance.

Tracker was with Paislee's mum at their home in Alabama in the US when he could tell Paislee needed to treat her low blood sugar even though she wasn't at home with them.

Watch the video above.

READ MORE: Dog breeds that shed more hair than most other canines

Shelby Landreth showed Tracker tracking Paislee down using his sense of smell in a TikTok video.

Remarkably, the service dog was five houses away when he realised her blood sugar had dropped, well before any alarms went off.

"I was just cleaning and out of nowhere he came and started pawing at me. I've heard stories of dogs being able to smell for miles, and I said there's only one way to find out," Landreth told AL.com.

READ MORE: The one thing you need to check before feeding dogs tomatoes

"Being that it had just snowed, we could actually see him tracing her scent and following the footsteps all the way down the neighbourhood to the neighbour's house."

By the time Tracker and Landreth got to Paislee at her neighbour's place, Paislee had already treated her low blood sugar and was able to let Tracker know she was OK.

Tracker and Landreth then went home where the dog was given a treat as a reward for doing a good job.

The incredible video has received a huge response and naturally led to some questions from Landreth's TikTok followers.

READ MORE: Bedtime habit you don't realise is ruining your sleep

People most wanted to know why Tracker wasn't with Paislee at the time of her low.

In a follow up video Landreth answered that question and more, explaining that because of Paislee's age Tracker's handler is currently Landreth.

"We are starting work in the new year in trying to get Paislee and Tracker to become more of an independent team... when the two of them are both ready and prepared because that means she has to be able to do everything for Tracker, which is a lot to ask of a five-year-old girl," she said.

The other reason that Paislee wasn't with Tracker is because Paislee was playing at a long-time neighbour and good friend's home.

"The mum is absolutely fantastic at keeping an eye on Paislee while she's there. Paislee does wear a continuous glucous monitor and has her own phone as a device so it can connect to her phone and let her know what her blood sugar is while she's there. Paislee is great at watching her blood sugar on her own," Landreth explained.

Another reason Landreth said she didn't leave Tracker at their long-time neighbour's house is because they have a dog of their own, and she didn't want to risk Tracker and the other dog not getting along as it can impact Tracker's service dog training.

"It only takes one bad interaction with another dog to pretty well ruin a service dog," she said.

FOLLOW US ON WHATSAPP HERE: Stay across all the latest in celebrity, lifestyle and opinion via our WhatsApp channel. No comments, no algorithm and nobody can see your private details.