The Tecmark 30393AA-01 is a 66-inch temperature sensor designed for hot tubs and spas requiring extended cable reach. This OEM replacement sensor features a 5/16-inch temperature bulb and extra-long 66-inch cable, making it ideal for installations where the control box is located far from the heater or when routing requires additional length. The sensor effectively resolves common spa error codes including HH (high heat), ICE (freeze protection), and OH (overheat) conditions.
At Bubbles Supply, this genuine Tecmark temperature sensor comes with our exact fit guarantee, ships same-day from our Canadian warehouse, and includes a full 1-year warranty for complete peace of mind. The durable construction ensures reliable temperature monitoring to keep your spa operating safely and efficiently. Before installation, verify your existing sensor's cable length and bulb diameter to ensure proper fitment, and always turn off power to your spa before beginning any electrical work.