Nauti-Stat™ MP 3V Marine WiFi Thermostat is a direct drop-in replacement for the Frigit™ MAC-PRO Series up to 3V/2. It uses all existing wiring connections and provides identical functionality in a modern package, and also includes WiFi Connectivity to allow remote monitoring and adjustment. It is designed to save labor time and rewiring effort by it’s ability to replace failing units in mere minutes.