I want to buy a home fetal heart monitor, do not know how much money

The price of home fetal heart monitor will mostly be in the 1000 yuan, but in the purchase of home fetal heart monitor, it is best to go to the regular hospital and pharmacy to buy, but in the use of fetal heart monitor, pregnancy should be regularly to the hospital to do a maternity examination, so that problems found in a timely manner to accept the treatment, and also pay attention to the nutritional balance of the diet during pregnancy, meat and vegetable collocation.