Worm Farming Thermometer for Live Red Wiggler Compost Bins - Accessories Keep Your Worm Composting Container Safe! - An Essential Part of Any Worm Farm Starter Kit - Perfect For Kids & Adults Quickly check the temperature in your worm bin so you can know if your worms are in danger! Color-coded gauge alerts you to dangerous temperatures with just a glance so that you can take corrective action. Eliminate the guesswork involved in maintaining your worm bin and experience the peace of mind knowing that you will always know if a problem arises. Eight inch probe reaches deep into the worm bedding to get the most accurate reading possible. Perfect for use with the Worm Factory, the Vermihut, and any other worm composing kit.