Introducing the Hunter Plug-In Expansion Module PCM-300 for Pro-C & HPC 3 Station. This convenient 3-station plug-in module allows you to increase your station count from 4 to 7, 7 to 10, and 10 to 13, making it a versatile and essential addition to your irrigation system. The advanced weather-based sensor measures sunlight and temperature, ensuring that your plants receive the perfect amount of water based on the current weather conditions. With easy management of your irrigation systems, this expansion module takes the guesswork out of watering, helping you to save time and conserve water. Upgrade your Pro-C or HPC system with the PCM-300 and take control of your watering needs today.