Apple mobile APP: For iPhone, please directly search E_test in APP Store to download and install, then click the Bluetooth app icon to open the software, click the Bluetooth icon above the software to enter and select DL24-BLE to be connected, then the remote wireless remote control setting and measurement function of the phone can be realized the discharge status can be checked on the phone at any time, and various data cleaning can be seen. Discharge voltage current power curve...... (No need for separate Bluetooth pairing, the software Bluetooth icon can be directly selected DL24) Android phone APP: Scan the QR code on the back of the host to download the corresponding APP software after the installation is complete, open the software and click the Bluetooth icon to directly select DL24-BLE to successfully use it online (no Bluetooth pairing is required, the Bluetooth icon of the software can directly select DL24) Computer wired APP: After the host is powered on, connect the USB port of the computer with the data cable provided with it, install the CH340 serial port driver, and then scan the QR code on the back of the host to download the corresponding APP software. After the installation is complete, open the software and select the serial port model that has just been installed. Of course, this APP style with the installation mode can also be compatible with the serial port device of the Bluetooth device!<br><br>Computer Bluetooth wireless connection APP: First add Bluetooth device as DL24-SPP serial port device on the computer, then scan the QR code on the back of the host to download the corresponding APP software and store it, and directly open the software without installation and select the newly added Bluetooth serial port model to successfully use it online First, turn the load switch OFF "off", measure the current no-load voltage of the battery, and then press the set key to turn the load switch ON "ON", then you can read