The APC AP9335T Temperature Sensor is a black environmental probe transmitter designed specifically for APC products. It features a smart-slot form factor and is equipped with USB and RJ45 connectors for easy connectivity. This temperature sensor allows for remote monitoring of environmental conditions, making it a valuable component for ensuring optimal performance and reliability of APC UPS batteries and components. The compact size of 0.5 cm height makes it convenient to install and use in various setups.