Made from high quality plastic, eco-friendly, durable and not easy to break.This refrigerator thermometer accurately measures temperatures ranging from -30 to 40 .High quality pointer display thermometer. Different color remind: blue: cold, green: comfortable, red: hot.This thermometer widely used for homes, laboratories, aquaculture, instrumentation workshops, libraries, hospitals, fridge etc.Keeping your fridge and freezer operating at the correct temperatures helps keep food fresh and save energy - so you save cashSpecifications:Material: ABS.Size: 6cm diamter x 2cm thickness.Color: show as pictures.Measuring range : -30 to 40 .Notes:Due to the light and screen setting difference, the item&39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package include:1 * Dial Pointer Refrigerator Thermometer.