Enhance the efficiency of your hydroponic system with the BN-LINK Digital Heat Mat temperature Thermostat Controller. This controller unit is designed to ensure the optimal temperature of your seed germination area, ensuring that your plants grow healthy and strong. Made of durable plastic and equipped with digital features, this thermostat is perfect for any home or garden setting. The set includes a thermostat and is manufactured in China by CENTURY. Upgrade your hydroponic system with this reliable and high-quality controller unit today.