SHENZHEN HEXIN ZONDAN MEDICAL EQUIPMENT CO., LTD We, Shenzhen Hexin ZONDAN medical equipment co., Ltd located in shenzhen of China. We are one of the leading manufacture for patient monitors, fetal monitors, fetal dopplers and pulse oximeters all kinds of products. We have the CE and ISO certificate. For detailed information about our company ZONDAN or our products, please refer to our website at