The iStartek PT21 is the world's smallest GPS tracking device, designed specifically for tracking pets such as cats, dogs, and cows. This compact device works based on the existing 2G/GPRS/GSM network and GPS satellites, allowing you to locate and monitor your pet remotely through SMS, an app, or the internet. With its advanced GPS Wifi and GPS positioning technology, you can have precise and accurate tracking information at your fingertips.

One of the outstanding features of the PT21 is its precise positioning capabilities. It uses GPS, Wifi, and LBS (Location-Based Service) to provide accurate location information. The default positioning mode and order are GPS: 5-15 meters (outdoor), Wifi: within 10-50 meters (indoor Wifi signal), and LBS: within 50-1000 meters. Additionally, the device keeps a historical route query for up to three months, allowing you to track your pet's movements over time.

The PT21 also offers various functions to ensure the safety and well-being of your pet. It has a call function and voice monitoring feature, allowing you to make dual calls, send SOS emergency calls, remotely monitor your pet's surroundings, and activate a no disturb mode. To use these features, simply insert a GSM network Nano SIM card that supports GSM 850,900,1800,1900MHZ.

With an IP67 waterproof rating, the PT21 can be used in wet conditions, rainy days, and even during sweaty sports activities. Its 1000mAh battery capacity provides a long standby time of up to 15 days and a working time of up to 2 days, ensuring that you can track your pet without worrying about frequent recharging.

In summary, the iStartek PT21 is a compact and feature-packed GPS tracking device designed for pet tracking. With its precise positioning, call function, voice monitoring, and waterproof design, it offers peace of mind for pet owners who want to keep a close eye on their furry friends. Whether you're using SMS, the app, or web-based tracking software, the PT21 allows you to track your pet in real-time and ensure their safety and well-being.