Shenzhen Tonglixing Technology Co., Ltd. is one of China's professional digital thermometer hygrometer manufacturer,Our digital thermometer for wine, food, beverage, barbecue, kitchen cooking, freezer, aquarium, and baby bath etc. We also provide digital thermometer hygrometer for room, gardening, humidor, cabinet etc. Our story Founded in 2002, we started our business by manufacturing LCD display screen for other domestic factories, four years later, many of our staff became experienced in ...