ELM327 Calibrate Voltage is a free Android application developed by ganchi. It is a useful tool that allows users to calibrate the voltage value of their ELM327 Bluetooth device, which is connected to the OBD2 terminal of their vehicle. The ELM327 chip has a function that corrects the voltage value it acquires. However, some of the ELM327 Bluetooth devices available in the market are not calibrated correctly, which may result in inaccurate voltage display. This application can help users to calibrate their device and ensure that the voltage value displayed is accurate and reliable.

It is important to note that in order to use this application, an ELM327 Bluetooth device is required, as well as a voltage tester (digital recommended) to measure the voltage of the vehicle. The developer of this application is certified as a trusted and safe developer by Androider, which adds an extra layer of reassurance to users.

Overall, ELM327 Calibrate Voltage is a simple yet practical application that helps users to ensure that their ELM327 Bluetooth device displays accurate voltage values.