ROLA PetTracker has a built-in temperature sensor that can detect the temperature in real time and is designed with over-temperature protection. It will not cause burns or harm to the pet, so please use it with confidence. The internal structure and external materials of the ROLA PetTracker are designed to dissipate heat. At the same time, ROLA PetTracker comes with a mounting base for fixation, which also creates a separation from the pet, preventing direct contact with the pet.