In any oven, even one with a light, checking the temperature on a meat thermometer can be a challenge. CDN has made it easier with its glow-in-the-dark meat and poultry thermometer ($11.99). The 2¼-inch round stainless steel thermometer, which is inserted before the roast goes into the oven, has bright fluorescent green temperature numbers and dial that are all easy to see. Little bonuses are a roasting temperature guide listed on the thermometer’s face and an adjustable marker that makes it simple to see when your roast is done. Available at Kitchen Outfitters, Acton Woods Plaza, 342 Great Road, Acton, 978-263-1955; Green’s Hardware & Paint, 308 Washington St., Wellesley Hills, 781-431-8877; and TAGS Hardware, Porter Square Shopping Center, 29 White St., Cambridge, 617-868-7711.