If you need a GPS Pet Tracker you should consider this model:

The GPS Pet Tracker has come a long way in recent years and now they are just perfect for finding fido whether you live on a mountain or in the city. Tracks your pet within 10 – 15 feet. It has an alert feature to let you know if you pet has left the yard. According to reviews, it runs nearly a week if your pet stays within your home wireless network and 1-2 days if he/she is outside the network.

If you have a fence climber or digger, this device is for you. I could also see a need for this while traveling and for rescues who transport dogs through unfamiliar territory. Take that extra step with your four legged friend.

Meet Whistle 3—the best all-in-one GPS location and activity tracker for dogs and cats—Smarter pet care is here.
Proactive Alerts: Get email, app or text notification when your pet leaves their safe place using Wi-Fi before they get too far away

Nationwide Coverage: Whistle uses advanced GPS and cellular technology to pinpoint your pet’s location anywhere in the U.S. on America’s largest network. Subscription plan (as low as $6.95/mo to be selected at activation) and one Wi-Fi network required. Only available in the U.S.

Trips: Follow your pet’s location over the last 24 hours to see where they went and when. Whistle creates a trip each time your pet leaves and returns to one of their Places using Wi-Fi.
Monitor Activity: Track your dog’s daily activity and rest to keep your companion in great shape for their age, weight and breed.

Battery life: Whistle 3 has the longest-lasting battery of its kind and can last up to 7 days. Battery life is impacted by the strength of your Wi-Fi and cellular coverage. Similar to your cell phone, it depends on usage as well as your environment. We will send you a notification when your battery needs to be charged, and a full recharge only takes 2 hours

Durable + Waterproof: attaches to any collar or harness up to 1” wide and designed to go anywhere with your pet, even swimming. (Whistle 3 is recommended for pets 8 lbs and above.)

Nationwide Coverage: Whistle uses advanced GPS and cellular technology to pinpoint your pet’s location anywhere in the U.S. on America’s largest network.

GPS Pet Tracker