Household electrocardiograph detection instrument

The invention discloses a household electrocardiograph detection instrument. The instrument comprises a casing, electrocardiograph measurement electrodes and an electrocardiograph detection circuit board, wherein the electrocardiograph detection circuit board comprises an amplifier A1, an amplifier A2, an MCU (microprogrammed control unit) single chip microcomputer, a power management module, a buffer, a MicroSD card and a wireless Bluetooth module; electrocardiosignals acquired by the electrocardiograph measurement electrodes are input into the amplifier A1, two signals of the electrocardiograph measurement electrodes are added together and then input into the amplifier A2, and the signals amplified by the amplifier A2 are taken as right-leg drive voltage to be fed back to the input end; the signals amplified by the amplifier A1 are converted into digital electrocardiosignals through A/D (analog/digital) conversion and then are subjected to filtering processing through a data processing module in the MCU single chip microcomputer; the wireless Bluetooth module transmits electrocardiograph data to a receiving terminal. The detection instrument is small in size, light in weight and convenient to carry, can perform a wireless transmission function and can transmit electrocardiograph data to a mobile phone, a tablet computer and other terminals in real time; accordingly, people can check the electrocardiograph wave form through the mobile phone, the tablet computer and other terminals and send the electrocardiograph wave form to a doctor in a remote distance for remote diagnosis.