Check the listing for details. Jump Start Digital Temperature Controller for Heat Mats Cloning Seed Starting. Color: Black, Condition: Used. Listed at 19.99 USD. This digital temperature controller is a must-have for those who are into hydroponics, cloning, and seed starting. It comes with a heat mat and a thermostat to ensure that your plants get the right amount of warmth they need. The device has a voltage of 120 V and has been manufactured in China. The set includes everything you need to get started and is perfect for those who are beginners in the field. The heat mat is in black color and is of the brand Hydrofarm. You can use it to set up your propagation and cloning equipment without worrying about the condition of the item. The product has been designed to help you achieve your gardening goals without any hassle. Buy now and get ready to see your plants grow healthy and strong.